20402124

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2081}}^1$

素因数の和:2150

約数の個数: 48

約数和(自身を含む): 51300480

約数和(自身を除く): 30898356

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 43, 57, 76, 86, 114, 129, 172, 228, 258, 516, 817, 1634, 2081, 2451, 3268, 4162, 4902, 6243, 8324, 9804, 12486, 24972, 39539, 79078, 89483, 118617, 158156, 178966, 237234, 268449, 357932, 474468, 536898, 1073796, 1700177, 3400354, 5100531, 6800708, 10201062, 20402124]

約数ペア:

[(1, 20402124), (2, 10201062), (3, 6800708), (4, 5100531), (6, 3400354), (12, 1700177), (19, 1073796), (38, 536898), (43, 474468), (57, 357932), (76, 268449), (86, 237234), (114, 178966), (129, 158156), (172, 118617), (228, 89483), (258, 79078), (516, 39539), (817, 24972), (1634, 12486), (2081, 9804), (2451, 8324), (3268, 6243), (4162, 4902)]