281291580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{353}}^1$

素因数の和:620

約数の個数: 144

約数和(自身を含む): 904569120

約数和(自身を除く): 623277540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 233, 285, 342, 353, 380, 466, 570, 684, 699, 706, 855, 932, 1059, 1140, 1165, 1398, 1412, 1710, 1765, 2097, 2118, 2330, 2796, 3177, 3420, 3495, 3530, 4194, 4236, 4427, 4660, 5295, 6354, 6707, 6990, 7060, 8388, 8854, 10485, 10590, 12708, 13281, 13414, 13980, 15885, 17708, 20121, 20970, 21180, 22135, 26562, 26828, 31770, 33535, 39843, 40242, 41940, 44270, 53124, 60363, 63540, 66405, 67070, 79686, 80484, 82249, 88540, 100605, 120726, 132810, 134140, 159372, 164498, 199215, 201210, 241452, 246747, 265620, 301815, 328996, 398430, 402420, 411245, 493494, 603630, 740241, 796860, 822490, 986988, 1207260, 1233735, 1480482, 1562731, 1644980, 2467470, 2960964, 3125462, 3701205, 4688193, 4934940, 6250924, 7402410, 7813655, 9376386, 14064579, 14804820, 15627310, 18752772, 23440965, 28129158, 31254620, 46881930, 56258316, 70322895, 93763860, 140645790, 281291580]

約数ペア:

[(1, 281291580), (2, 140645790), (3, 93763860), (4, 70322895), (5, 56258316), (6, 46881930), (9, 31254620), (10, 28129158), (12, 23440965), (15, 18752772), (18, 15627310), (19, 14804820), (20, 14064579), (30, 9376386), (36, 7813655), (38, 7402410), (45, 6250924), (57, 4934940), (60, 4688193), (76, 3701205), (90, 3125462), (95, 2960964), (114, 2467470), (171, 1644980), (180, 1562731), (190, 1480482), (228, 1233735), (233, 1207260), (285, 986988), (342, 822490), (353, 796860), (380, 740241), (466, 603630), (570, 493494), (684, 411245), (699, 402420), (706, 398430), (855, 328996), (932, 301815), (1059, 265620), (1140, 246747), (1165, 241452), (1398, 201210), (1412, 199215), (1710, 164498), (1765, 159372), (2097, 134140), (2118, 132810), (2330, 120726), (2796, 100605), (3177, 88540), (3420, 82249), (3495, 80484), (3530, 79686), (4194, 67070), (4236, 66405), (4427, 63540), (4660, 60363), (5295, 53124), (6354, 44270), (6707, 41940), (6990, 40242), (7060, 39843), (8388, 33535), (8854, 31770), (10485, 26828), (10590, 26562), (12708, 22135), (13281, 21180), (13414, 20970), (13980, 20121), (15885, 17708)]