256341540

素因数分解:

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

素因数の和:411

約数の個数: 288

約数和(自身を含む): 949173120

約数和(自身を除く): 692831580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 26, 28, 30, 35, 38, 39, 42, 49, 52, 57, 60, 65, 70, 76, 78, 84, 91, 95, 98, 105, 114, 130, 133, 140, 147, 156, 182, 190, 195, 196, 210, 228, 245, 247, 260, 266, 273, 285, 294, 353, 364, 380, 390, 399, 420, 455, 490, 494, 532, 546, 570, 588, 637, 665, 706, 735, 741, 780, 798, 910, 931, 980, 988, 1059, 1092, 1140, 1235, 1274, 1330, 1365, 1412, 1470, 1482, 1596, 1729, 1765, 1820, 1862, 1911, 1995, 2118, 2470, 2471, 2548, 2660, 2730, 2793, 2940, 2964, 3185, 3458, 3530, 3705, 3724, 3822, 3990, 4236, 4589, 4655, 4940, 4942, 5187, 5295, 5460, 5586, 6370, 6707, 6916, 7060, 7410, 7413, 7644, 7980, 8645, 9178, 9310, 9555, 9884, 10374, 10590, 11172, 12103, 12355, 12740, 13414, 13767, 13965, 14820, 14826, 17290, 17297, 18356, 18620, 19110, 20121, 20748, 21180, 22945, 24206, 24710, 25935, 26828, 27534, 27930, 29652, 32123, 33535, 34580, 34594, 36309, 37065, 38220, 40242, 45890, 46949, 48412, 49420, 51870, 51891, 55068, 55860, 60515, 64246, 67070, 68835, 69188, 72618, 74130, 80484, 86485, 87191, 91780, 93898, 96369, 100605, 103740, 103782, 121030, 128492, 134140, 137670, 140847, 145236, 148260, 160615, 172970, 174382, 181545, 187796, 192738, 201210, 207564, 224861, 234745, 242060, 259455, 261573, 275340, 281694, 321230, 328643, 345940, 348764, 363090, 385476, 402420, 435955, 449722, 469490, 481845, 518910, 523146, 563388, 610337, 642460, 657286, 674583, 704235, 726180, 871910, 899444, 938980, 963690, 985929, 1037820, 1046292, 1124305, 1220674, 1307865, 1314572, 1349166, 1408470, 1643215, 1743820, 1831011, 1927380, 1971858, 2248610, 2441348, 2615730, 2698332, 2816940, 3051685, 3286430, 3372915, 3662022, 3943716, 4272359, 4497220, 4929645, 5231460, 6103370, 6572860, 6745830, 7324044, 8544718, 9155055, 9859290, 12206740, 12817077, 13491660, 17089436, 18310110, 19718580, 21361795, 25634154, 36620220, 42723590, 51268308, 64085385, 85447180, 128170770, 256341540]

約数ペア:

[(1, 256341540), (2, 128170770), (3, 85447180), (4, 64085385), (5, 51268308), (6, 42723590), (7, 36620220), (10, 25634154), (12, 21361795), (13, 19718580), (14, 18310110), (15, 17089436), (19, 13491660), (20, 12817077), (21, 12206740), (26, 9859290), (28, 9155055), (30, 8544718), (35, 7324044), (38, 6745830), (39, 6572860), (42, 6103370), (49, 5231460), (52, 4929645), (57, 4497220), (60, 4272359), (65, 3943716), (70, 3662022), (76, 3372915), (78, 3286430), (84, 3051685), (91, 2816940), (95, 2698332), (98, 2615730), (105, 2441348), (114, 2248610), (130, 1971858), (133, 1927380), (140, 1831011), (147, 1743820), (156, 1643215), (182, 1408470), (190, 1349166), (195, 1314572), (196, 1307865), (210, 1220674), (228, 1124305), (245, 1046292), (247, 1037820), (260, 985929), (266, 963690), (273, 938980), (285, 899444), (294, 871910), (353, 726180), (364, 704235), (380, 674583), (390, 657286), (399, 642460), (420, 610337), (455, 563388), (490, 523146), (494, 518910), (532, 481845), (546, 469490), (570, 449722), (588, 435955), (637, 402420), (665, 385476), (706, 363090), (735, 348764), (741, 345940), (780, 328643), (798, 321230), (910, 281694), (931, 275340), (980, 261573), (988, 259455), (1059, 242060), (1092, 234745), (1140, 224861), (1235, 207564), (1274, 201210), (1330, 192738), (1365, 187796), (1412, 181545), (1470, 174382), (1482, 172970), (1596, 160615), (1729, 148260), (1765, 145236), (1820, 140847), (1862, 137670), (1911, 134140), (1995, 128492), (2118, 121030), (2470, 103782), (2471, 103740), (2548, 100605), (2660, 96369), (2730, 93898), (2793, 91780), (2940, 87191), (2964, 86485), (3185, 80484), (3458, 74130), (3530, 72618), (3705, 69188), (3724, 68835), (3822, 67070), (3990, 64246), (4236, 60515), (4589, 55860), (4655, 55068), (4940, 51891), (4942, 51870), (5187, 49420), (5295, 48412), (5460, 46949), (5586, 45890), (6370, 40242), (6707, 38220), (6916, 37065), (7060, 36309), (7410, 34594), (7413, 34580), (7644, 33535), (7980, 32123), (8645, 29652), (9178, 27930), (9310, 27534), (9555, 26828), (9884, 25935), (10374, 24710), (10590, 24206), (11172, 22945), (12103, 21180), (12355, 20748), (12740, 20121), (13414, 19110), (13767, 18620), (13965, 18356), (14820, 17297), (14826, 17290)]