70401220

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{9049}}^1$

素因数の和:9447

約数の個数: 24

約数和(自身を含む): 148239000

約数和(自身を除く): 77837780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 9049, 18098, 36196, 45245, 90490, 180980, 3520061, 7040122, 14080244, 17600305, 35200610, 70401220]

約数ペア:

[(1, 70401220), (2, 35200610), (4, 17600305), (5, 14080244), (10, 7040122), (20, 3520061), (389, 180980), (778, 90490), (1556, 45245), (1945, 36196), (3890, 18098), (7780, 9049)]