263157440

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1291}}^1$

素因数の和:1335

約数の個数: 168

約数和(自身を含む): 785634192

約数和(自身を除く): 522476752

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 320, 364, 392, 416, 448, 455, 490, 520, 560, 637, 728, 784, 832, 910, 980, 1040, 1120, 1274, 1291, 1456, 1568, 1820, 1960, 2080, 2240, 2548, 2582, 2912, 3136, 3185, 3640, 3920, 4160, 5096, 5164, 5824, 6370, 6455, 7280, 7840, 9037, 10192, 10328, 12740, 12910, 14560, 15680, 16783, 18074, 20384, 20656, 25480, 25820, 29120, 33566, 36148, 40768, 41312, 45185, 50960, 51640, 63259, 67132, 72296, 82624, 83915, 90370, 101920, 103280, 117481, 126518, 134264, 144592, 167830, 180740, 203840, 206560, 234962, 253036, 268528, 289184, 316295, 335660, 361480, 413120, 469924, 506072, 537056, 578368, 587405, 632590, 671320, 722960, 822367, 939848, 1012144, 1074112, 1174810, 1265180, 1342640, 1445920, 1644734, 1879696, 2024288, 2349620, 2530360, 2685280, 2891840, 3289468, 3759392, 4048576, 4111835, 4699240, 5060720, 5370560, 6578936, 7518784, 8223670, 9398480, 10121440, 13157872, 16447340, 18796960, 20242880, 26315744, 32894680, 37593920, 52631488, 65789360, 131578720, 263157440]

約数ペア:

[(1, 263157440), (2, 131578720), (4, 65789360), (5, 52631488), (7, 37593920), (8, 32894680), (10, 26315744), (13, 20242880), (14, 18796960), (16, 16447340), (20, 13157872), (26, 10121440), (28, 9398480), (32, 8223670), (35, 7518784), (40, 6578936), (49, 5370560), (52, 5060720), (56, 4699240), (64, 4111835), (65, 4048576), (70, 3759392), (80, 3289468), (91, 2891840), (98, 2685280), (104, 2530360), (112, 2349620), (130, 2024288), (140, 1879696), (160, 1644734), (182, 1445920), (196, 1342640), (208, 1265180), (224, 1174810), (245, 1074112), (260, 1012144), (280, 939848), (320, 822367), (364, 722960), (392, 671320), (416, 632590), (448, 587405), (455, 578368), (490, 537056), (520, 506072), (560, 469924), (637, 413120), (728, 361480), (784, 335660), (832, 316295), (910, 289184), (980, 268528), (1040, 253036), (1120, 234962), (1274, 206560), (1291, 203840), (1456, 180740), (1568, 167830), (1820, 144592), (1960, 134264), (2080, 126518), (2240, 117481), (2548, 103280), (2582, 101920), (2912, 90370), (3136, 83915), (3185, 82624), (3640, 72296), (3920, 67132), (4160, 63259), (5096, 51640), (5164, 50960), (5824, 45185), (6370, 41312), (6455, 40768), (7280, 36148), (7840, 33566), (9037, 29120), (10192, 25820), (10328, 25480), (12740, 20656), (12910, 20384), (14560, 18074), (15680, 16783)]