638728720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1283}}^1$

素因数の和:1437

約数の個数: 120

約数和(自身を含む): 1742459904

約数和(自身を除く): 1103731184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 127, 140, 196, 245, 254, 280, 392, 490, 508, 560, 635, 784, 889, 980, 1016, 1270, 1283, 1778, 1960, 2032, 2540, 2566, 3556, 3920, 4445, 5080, 5132, 6223, 6415, 7112, 8890, 8981, 10160, 10264, 12446, 12830, 14224, 17780, 17962, 20528, 24892, 25660, 31115, 35560, 35924, 44905, 49784, 51320, 62230, 62867, 71120, 71848, 89810, 99568, 102640, 124460, 125734, 143696, 162941, 179620, 248920, 251468, 314335, 325882, 359240, 497840, 502936, 628670, 651764, 718480, 814705, 1005872, 1140587, 1257340, 1303528, 1629410, 2281174, 2514680, 2607056, 3258820, 4562348, 5029360, 5702935, 6517640, 7984109, 9124696, 11405870, 13035280, 15968218, 18249392, 22811740, 31936436, 39920545, 45623480, 63872872, 79841090, 91246960, 127745744, 159682180, 319364360, 638728720]

約数ペア:

[(1, 638728720), (2, 319364360), (4, 159682180), (5, 127745744), (7, 91246960), (8, 79841090), (10, 63872872), (14, 45623480), (16, 39920545), (20, 31936436), (28, 22811740), (35, 18249392), (40, 15968218), (49, 13035280), (56, 11405870), (70, 9124696), (80, 7984109), (98, 6517640), (112, 5702935), (127, 5029360), (140, 4562348), (196, 3258820), (245, 2607056), (254, 2514680), (280, 2281174), (392, 1629410), (490, 1303528), (508, 1257340), (560, 1140587), (635, 1005872), (784, 814705), (889, 718480), (980, 651764), (1016, 628670), (1270, 502936), (1283, 497840), (1778, 359240), (1960, 325882), (2032, 314335), (2540, 251468), (2566, 248920), (3556, 179620), (3920, 162941), (4445, 143696), (5080, 125734), (5132, 124460), (6223, 102640), (6415, 99568), (7112, 89810), (8890, 71848), (8981, 71120), (10160, 62867), (10264, 62230), (12446, 51320), (12830, 49784), (14224, 44905), (17780, 35924), (17962, 35560), (20528, 31115), (24892, 25660)]