257788240

素因数分解:

$2^4\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{3181}}^1$

素因数の和:4207

約数の個数: 40

約数和(自身を含む): 600137928

約数和(自身を除く): 342349688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1013, 2026, 3181, 4052, 5065, 6362, 8104, 10130, 12724, 15905, 16208, 20260, 25448, 31810, 40520, 50896, 63620, 81040, 127240, 254480, 3222353, 6444706, 12889412, 16111765, 25778824, 32223530, 51557648, 64447060, 128894120, 257788240]

約数ペア:

[(1, 257788240), (2, 128894120), (4, 64447060), (5, 51557648), (8, 32223530), (10, 25778824), (16, 16111765), (20, 12889412), (40, 6444706), (80, 3222353), (1013, 254480), (2026, 127240), (3181, 81040), (4052, 63620), (5065, 50896), (6362, 40520), (8104, 31810), (10130, 25448), (12724, 20260), (15905, 16208)]