20456880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{85237}}^1$

素因数の和:85253

約数の個数: 40

約数和(自身を含む): 63417072

約数和(自身を除く): 42960192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 85237, 170474, 255711, 340948, 426185, 511422, 681896, 852370, 1022844, 1278555, 1363792, 1704740, 2045688, 2557110, 3409480, 4091376, 5114220, 6818960, 10228440, 20456880]

約数ペア:

[(1, 20456880), (2, 10228440), (3, 6818960), (4, 5114220), (5, 4091376), (6, 3409480), (8, 2557110), (10, 2045688), (12, 1704740), (15, 1363792), (16, 1278555), (20, 1022844), (24, 852370), (30, 681896), (40, 511422), (48, 426185), (60, 340948), (80, 255711), (120, 170474), (240, 85237)]