25193390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:668

約数の個数: 32

約数和(自身を含む): 47174400

約数和(自身を除く): 21981010

約数列:

[1, 2, 5, 10, 31, 62, 155, 181, 310, 362, 449, 898, 905, 1810, 2245, 4490, 5611, 11222, 13919, 27838, 28055, 56110, 69595, 81269, 139190, 162538, 406345, 812690, 2519339, 5038678, 12596695, 25193390]

約数ペア:

[(1, 25193390), (2, 12596695), (5, 5038678), (10, 2519339), (31, 812690), (62, 406345), (155, 162538), (181, 139190), (310, 81269), (362, 69595), (449, 56110), (898, 28055), (905, 27838), (1810, 13919), (2245, 11222), (4490, 5611)]