20019324

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{709}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 50654240

約数和(自身を除く): 30634916

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 181, 362, 543, 709, 724, 1086, 1418, 2127, 2172, 2353, 2836, 4254, 4706, 7059, 8508, 9217, 9412, 14118, 18434, 27651, 28236, 36868, 55302, 110604, 128329, 256658, 384987, 513316, 769974, 1539948, 1668277, 3336554, 5004831, 6673108, 10009662, 20019324]

約数ペア:

[(1, 20019324), (2, 10009662), (3, 6673108), (4, 5004831), (6, 3336554), (12, 1668277), (13, 1539948), (26, 769974), (39, 513316), (52, 384987), (78, 256658), (156, 128329), (181, 110604), (362, 55302), (543, 36868), (709, 28236), (724, 27651), (1086, 18434), (1418, 14118), (2127, 9412), (2172, 9217), (2353, 8508), (2836, 7059), (4254, 4706)]