20860424

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2539}}^1$

素因数の和:2637

約数の個数: 32

約数和(自身を含む): 42672000

約数和(自身を除く): 21811576

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 158, 316, 632, 1027, 2054, 2539, 4108, 5078, 8216, 10156, 20312, 33007, 66014, 132028, 200581, 264056, 401162, 802324, 1604648, 2607553, 5215106, 10430212, 20860424]

約数ペア:

[(1, 20860424), (2, 10430212), (4, 5215106), (8, 2607553), (13, 1604648), (26, 802324), (52, 401162), (79, 264056), (104, 200581), (158, 132028), (316, 66014), (632, 33007), (1027, 20312), (2054, 10156), (2539, 8216), (4108, 5078)]