2051228920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3944671}}^1$

素因数の和:3944695

約数の個数: 32

約数和(自身を含む): 4970286720

約数和(自身を除く): 2919057800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3944671, 7889342, 15778684, 19723355, 31557368, 39446710, 51280723, 78893420, 102561446, 157786840, 205122892, 256403615, 410245784, 512807230, 1025614460, 2051228920]

約数ペア:

[(1, 2051228920), (2, 1025614460), (4, 512807230), (5, 410245784), (8, 256403615), (10, 205122892), (13, 157786840), (20, 102561446), (26, 78893420), (40, 51280723), (52, 39446710), (65, 31557368), (104, 19723355), (130, 15778684), (260, 7889342), (520, 3944671)]