40640840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24781}}^1$

素因数の和:24833

約数の個数: 32

約数和(自身を含む): 93675960

約数和(自身を除く): 53035120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 24781, 49562, 99124, 123905, 198248, 247810, 495620, 991240, 1016021, 2032042, 4064084, 5080105, 8128168, 10160210, 20320420, 40640840]

約数ペア:

[(1, 40640840), (2, 20320420), (4, 10160210), (5, 8128168), (8, 5080105), (10, 4064084), (20, 2032042), (40, 1016021), (41, 991240), (82, 495620), (164, 247810), (205, 198248), (328, 123905), (410, 99124), (820, 49562), (1640, 24781)]