640853850

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:414

約数の個数: 288

約数和(自身を含む): 2101740480

約数和(自身を除く): 1460886630

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 19, 21, 25, 26, 30, 35, 38, 39, 42, 49, 50, 57, 65, 70, 75, 78, 91, 95, 98, 105, 114, 130, 133, 147, 150, 175, 182, 190, 195, 210, 245, 247, 266, 273, 285, 294, 325, 350, 353, 390, 399, 455, 475, 490, 494, 525, 546, 570, 637, 650, 665, 706, 735, 741, 798, 910, 931, 950, 975, 1050, 1059, 1225, 1235, 1274, 1330, 1365, 1425, 1470, 1482, 1729, 1765, 1862, 1911, 1950, 1995, 2118, 2275, 2450, 2470, 2471, 2730, 2793, 2850, 3185, 3325, 3458, 3530, 3675, 3705, 3822, 3990, 4550, 4589, 4655, 4942, 5187, 5295, 5586, 6175, 6370, 6650, 6707, 6825, 7350, 7410, 7413, 8645, 8825, 9178, 9310, 9555, 9975, 10374, 10590, 12103, 12350, 12355, 13414, 13650, 13767, 13965, 14826, 15925, 17290, 17297, 17650, 18525, 19110, 19950, 20121, 22945, 23275, 24206, 24710, 25935, 26475, 27534, 27930, 31850, 32123, 33535, 34594, 36309, 37050, 37065, 40242, 43225, 45890, 46550, 46949, 47775, 51870, 51891, 52950, 60515, 61775, 64246, 67070, 68835, 69825, 72618, 74130, 86450, 86485, 87191, 93898, 95550, 96369, 100605, 103782, 114725, 121030, 123550, 129675, 137670, 139650, 140847, 160615, 167675, 172970, 174382, 181545, 185325, 192738, 201210, 224861, 229450, 234745, 259350, 259455, 261573, 281694, 302575, 321230, 328643, 335350, 344175, 363090, 370650, 432425, 435955, 449722, 469490, 481845, 503025, 518910, 523146, 605150, 610337, 657286, 674583, 688350, 704235, 803075, 864850, 871910, 907725, 963690, 985929, 1006050, 1124305, 1173725, 1220674, 1297275, 1307865, 1349166, 1408470, 1606150, 1643215, 1815450, 1831011, 1971858, 2179775, 2248610, 2347450, 2409225, 2594550, 2615730, 3051685, 3286430, 3372915, 3521175, 3662022, 4272359, 4359550, 4818450, 4929645, 5621525, 6103370, 6539325, 6745830, 7042350, 8216075, 8544718, 9155055, 9859290, 11243050, 12817077, 13078650, 15258425, 16432150, 16864575, 18310110, 21361795, 24648225, 25634154, 30516850, 33729150, 42723590, 45775275, 49296450, 64085385, 91550550, 106808975, 128170770, 213617950, 320426925, 640853850]

約数ペア:

[(1, 640853850), (2, 320426925), (3, 213617950), (5, 128170770), (6, 106808975), (7, 91550550), (10, 64085385), (13, 49296450), (14, 45775275), (15, 42723590), (19, 33729150), (21, 30516850), (25, 25634154), (26, 24648225), (30, 21361795), (35, 18310110), (38, 16864575), (39, 16432150), (42, 15258425), (49, 13078650), (50, 12817077), (57, 11243050), (65, 9859290), (70, 9155055), (75, 8544718), (78, 8216075), (91, 7042350), (95, 6745830), (98, 6539325), (105, 6103370), (114, 5621525), (130, 4929645), (133, 4818450), (147, 4359550), (150, 4272359), (175, 3662022), (182, 3521175), (190, 3372915), (195, 3286430), (210, 3051685), (245, 2615730), (247, 2594550), (266, 2409225), (273, 2347450), (285, 2248610), (294, 2179775), (325, 1971858), (350, 1831011), (353, 1815450), (390, 1643215), (399, 1606150), (455, 1408470), (475, 1349166), (490, 1307865), (494, 1297275), (525, 1220674), (546, 1173725), (570, 1124305), (637, 1006050), (650, 985929), (665, 963690), (706, 907725), (735, 871910), (741, 864850), (798, 803075), (910, 704235), (931, 688350), (950, 674583), (975, 657286), (1050, 610337), (1059, 605150), (1225, 523146), (1235, 518910), (1274, 503025), (1330, 481845), (1365, 469490), (1425, 449722), (1470, 435955), (1482, 432425), (1729, 370650), (1765, 363090), (1862, 344175), (1911, 335350), (1950, 328643), (1995, 321230), (2118, 302575), (2275, 281694), (2450, 261573), (2470, 259455), (2471, 259350), (2730, 234745), (2793, 229450), (2850, 224861), (3185, 201210), (3325, 192738), (3458, 185325), (3530, 181545), (3675, 174382), (3705, 172970), (3822, 167675), (3990, 160615), (4550, 140847), (4589, 139650), (4655, 137670), (4942, 129675), (5187, 123550), (5295, 121030), (5586, 114725), (6175, 103782), (6370, 100605), (6650, 96369), (6707, 95550), (6825, 93898), (7350, 87191), (7410, 86485), (7413, 86450), (8645, 74130), (8825, 72618), (9178, 69825), (9310, 68835), (9555, 67070), (9975, 64246), (10374, 61775), (10590, 60515), (12103, 52950), (12350, 51891), (12355, 51870), (13414, 47775), (13650, 46949), (13767, 46550), (13965, 45890), (14826, 43225), (15925, 40242), (17290, 37065), (17297, 37050), (17650, 36309), (18525, 34594), (19110, 33535), (19950, 32123), (20121, 31850), (22945, 27930), (23275, 27534), (24206, 26475), (24710, 25935)]