399865020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{6664417}}^1$

素因数の和:6664429

約数の個数: 24

約数和(自身を含む): 1119622224

約数和(自身を除く): 719757204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 6664417, 13328834, 19993251, 26657668, 33322085, 39986502, 66644170, 79973004, 99966255, 133288340, 199932510, 399865020]

約数ペア:

[(1, 399865020), (2, 199932510), (3, 133288340), (4, 99966255), (5, 79973004), (6, 66644170), (10, 39986502), (12, 33322085), (15, 26657668), (20, 19993251), (30, 13328834), (60, 6664417)]