71542720

素因数分解:

$2^6\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1249}}^1$

素因数の和:1445

約数の個数: 56

約数和(自身を含む): 171450000

約数和(自身を除く): 99907280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 179, 320, 358, 716, 895, 1249, 1432, 1790, 2498, 2864, 3580, 4996, 5728, 6245, 7160, 9992, 11456, 12490, 14320, 19984, 24980, 28640, 39968, 49960, 57280, 79936, 99920, 199840, 223571, 399680, 447142, 894284, 1117855, 1788568, 2235710, 3577136, 4471420, 7154272, 8942840, 14308544, 17885680, 35771360, 71542720]

約数ペア:

[(1, 71542720), (2, 35771360), (4, 17885680), (5, 14308544), (8, 8942840), (10, 7154272), (16, 4471420), (20, 3577136), (32, 2235710), (40, 1788568), (64, 1117855), (80, 894284), (160, 447142), (179, 399680), (320, 223571), (358, 199840), (716, 99920), (895, 79936), (1249, 57280), (1432, 49960), (1790, 39968), (2498, 28640), (2864, 24980), (3580, 19984), (4996, 14320), (5728, 12490), (6245, 11456), (7160, 9992)]