4080494840

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{249419}}^1$

素因数の和:249839

約数の個数: 32

約数和(自身を含む): 9203598000

約数和(自身を除く): 5123103160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 8180, 16360, 249419, 498838, 997676, 1247095, 1995352, 2494190, 4988380, 9976760, 102012371, 204024742, 408049484, 510061855, 816098968, 1020123710, 2040247420, 4080494840]

約数ペア:

[(1, 4080494840), (2, 2040247420), (4, 1020123710), (5, 816098968), (8, 510061855), (10, 408049484), (20, 204024742), (40, 102012371), (409, 9976760), (818, 4988380), (1636, 2494190), (2045, 1995352), (3272, 1247095), (4090, 997676), (8180, 498838), (16360, 249419)]