266320420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{324781}}^1$

素因数の和:324831

約数の個数: 24

約数和(自身を含む): 572915448

約数和(自身を除く): 306595028

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 324781, 649562, 1299124, 1623905, 3247810, 6495620, 13316021, 26632042, 53264084, 66580105, 133160210, 266320420]

約数ペア:

[(1, 266320420), (2, 133160210), (4, 66580105), (5, 53264084), (10, 26632042), (20, 13316021), (41, 6495620), (82, 3247810), (164, 1623905), (205, 1299124), (410, 649562), (820, 324781)]