131578720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1291}}^1$

素因数の和:1333

約数の個数: 144

約数和(自身を含む): 389724048

約数和(自身を除く): 258145328

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1120, 1274, 1291, 1456, 1568, 1820, 1960, 2080, 2548, 2582, 2912, 3185, 3640, 3920, 5096, 5164, 6370, 6455, 7280, 7840, 9037, 10192, 10328, 12740, 12910, 14560, 16783, 18074, 20384, 20656, 25480, 25820, 33566, 36148, 41312, 45185, 50960, 51640, 63259, 67132, 72296, 83915, 90370, 101920, 103280, 117481, 126518, 134264, 144592, 167830, 180740, 206560, 234962, 253036, 268528, 289184, 316295, 335660, 361480, 469924, 506072, 537056, 587405, 632590, 671320, 722960, 822367, 939848, 1012144, 1174810, 1265180, 1342640, 1445920, 1644734, 1879696, 2024288, 2349620, 2530360, 2685280, 3289468, 3759392, 4111835, 4699240, 5060720, 6578936, 8223670, 9398480, 10121440, 13157872, 16447340, 18796960, 26315744, 32894680, 65789360, 131578720]

約数ペア:

[(1, 131578720), (2, 65789360), (4, 32894680), (5, 26315744), (7, 18796960), (8, 16447340), (10, 13157872), (13, 10121440), (14, 9398480), (16, 8223670), (20, 6578936), (26, 5060720), (28, 4699240), (32, 4111835), (35, 3759392), (40, 3289468), (49, 2685280), (52, 2530360), (56, 2349620), (65, 2024288), (70, 1879696), (80, 1644734), (91, 1445920), (98, 1342640), (104, 1265180), (112, 1174810), (130, 1012144), (140, 939848), (160, 822367), (182, 722960), (196, 671320), (208, 632590), (224, 587405), (245, 537056), (260, 506072), (280, 469924), (364, 361480), (392, 335660), (416, 316295), (455, 289184), (490, 268528), (520, 253036), (560, 234962), (637, 206560), (728, 180740), (784, 167830), (910, 144592), (980, 134264), (1040, 126518), (1120, 117481), (1274, 103280), (1291, 101920), (1456, 90370), (1568, 83915), (1820, 72296), (1960, 67132), (2080, 63259), (2548, 51640), (2582, 50960), (2912, 45185), (3185, 41312), (3640, 36148), (3920, 33566), (5096, 25820), (5164, 25480), (6370, 20656), (6455, 20384), (7280, 18074), (7840, 16783), (9037, 14560), (10192, 12910), (10328, 12740)]