39778480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{283}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 106493184

約数和(自身を除く): 66714704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 251, 280, 283, 502, 560, 566, 1004, 1132, 1255, 1415, 1757, 1981, 2008, 2264, 2510, 2830, 3514, 3962, 4016, 4528, 5020, 5660, 7028, 7924, 8785, 9905, 10040, 11320, 14056, 15848, 17570, 19810, 20080, 22640, 28112, 31696, 35140, 39620, 70280, 71033, 79240, 140560, 142066, 158480, 284132, 355165, 497231, 568264, 710330, 994462, 1136528, 1420660, 1988924, 2486155, 2841320, 3977848, 4972310, 5682640, 7955696, 9944620, 19889240, 39778480]

約数ペア:

[(1, 39778480), (2, 19889240), (4, 9944620), (5, 7955696), (7, 5682640), (8, 4972310), (10, 3977848), (14, 2841320), (16, 2486155), (20, 1988924), (28, 1420660), (35, 1136528), (40, 994462), (56, 710330), (70, 568264), (80, 497231), (112, 355165), (140, 284132), (251, 158480), (280, 142066), (283, 140560), (502, 79240), (560, 71033), (566, 70280), (1004, 39620), (1132, 35140), (1255, 31696), (1415, 28112), (1757, 22640), (1981, 20080), (2008, 19810), (2264, 17570), (2510, 15848), (2830, 14056), (3514, 11320), (3962, 10040), (4016, 9905), (4528, 8785), (5020, 7924), (5660, 7028)]