12986480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12487}}^1$

素因数の和:12513

約数の個数: 40

約数和(自身を含む): 32518752

約数和(自身を除く): 19532272

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12487, 24974, 49948, 62435, 99896, 124870, 162331, 199792, 249740, 324662, 499480, 649324, 811655, 998960, 1298648, 1623310, 2597296, 3246620, 6493240, 12986480]

約数ペア:

[(1, 12986480), (2, 6493240), (4, 3246620), (5, 2597296), (8, 1623310), (10, 1298648), (13, 998960), (16, 811655), (20, 649324), (26, 499480), (40, 324662), (52, 249740), (65, 199792), (80, 162331), (104, 124870), (130, 99896), (208, 62435), (260, 49948), (520, 24974), (1040, 12487)]