25910480

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1987}}^1$

素因数の和:2163

約数の個数: 40

約数和(自身を含む): 60641952

約数和(自身を除く): 34731472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 1987, 2608, 3260, 3974, 6520, 7948, 9935, 13040, 15896, 19870, 31792, 39740, 79480, 158960, 323881, 647762, 1295524, 1619405, 2591048, 3238810, 5182096, 6477620, 12955240, 25910480]

約数ペア:

[(1, 25910480), (2, 12955240), (4, 6477620), (5, 5182096), (8, 3238810), (10, 2591048), (16, 1619405), (20, 1295524), (40, 647762), (80, 323881), (163, 158960), (326, 79480), (652, 39740), (815, 31792), (1304, 19870), (1630, 15896), (1987, 13040), (2608, 9935), (3260, 7948), (3974, 6520)]