51308920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1249}}^1$

素因数の和:1352

約数の個数: 64

約数和(自身を含む): 126000000

約数和(自身を除く): 74691080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 260, 316, 395, 520, 632, 790, 1027, 1249, 1580, 2054, 2498, 3160, 4108, 4996, 5135, 6245, 8216, 9992, 10270, 12490, 16237, 20540, 24980, 32474, 41080, 49960, 64948, 81185, 98671, 129896, 162370, 197342, 324740, 394684, 493355, 649480, 789368, 986710, 1282723, 1973420, 2565446, 3946840, 5130892, 6413615, 10261784, 12827230, 25654460, 51308920]

約数ペア:

[(1, 51308920), (2, 25654460), (4, 12827230), (5, 10261784), (8, 6413615), (10, 5130892), (13, 3946840), (20, 2565446), (26, 1973420), (40, 1282723), (52, 986710), (65, 789368), (79, 649480), (104, 493355), (130, 394684), (158, 324740), (260, 197342), (316, 162370), (395, 129896), (520, 98671), (632, 81185), (790, 64948), (1027, 49960), (1249, 41080), (1580, 32474), (2054, 24980), (2498, 20540), (3160, 16237), (4108, 12490), (4996, 10270), (5135, 9992), (6245, 8216)]