681099412

素因数分解:

$2^2\times 7^2\times {\mathrm{163}}^1\times {\mathrm{21319}}^1$

素因数の和:21500

約数の個数: 36

約数和(自身を含む): 1395095520

約数和(自身を除く): 713996108

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 163, 196, 326, 652, 1141, 2282, 4564, 7987, 15974, 21319, 31948, 42638, 85276, 149233, 298466, 596932, 1044631, 2089262, 3474997, 4178524, 6949994, 13899988, 24324979, 48649958, 97299916, 170274853, 340549706, 681099412]

約数ペア:

[(1, 681099412), (2, 340549706), (4, 170274853), (7, 97299916), (14, 48649958), (28, 24324979), (49, 13899988), (98, 6949994), (163, 4178524), (196, 3474997), (326, 2089262), (652, 1044631), (1141, 596932), (2282, 298466), (4564, 149233), (7987, 85276), (15974, 42638), (21319, 31948)]