388614940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{31189}}^1$

素因数の和:31294

約数の個数: 48

約数和(自身を含む): 943185600

約数和(自身を除く): 554570660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 31189, 62378, 124756, 155945, 218323, 311890, 436646, 623780, 873292, 1091615, 2183230, 2775821, 4366460, 5551642, 11103284, 13879105, 19430747, 27758210, 38861494, 55516420, 77722988, 97153735, 194307470, 388614940]

約数ペア:

[(1, 388614940), (2, 194307470), (4, 97153735), (5, 77722988), (7, 55516420), (10, 38861494), (14, 27758210), (20, 19430747), (28, 13879105), (35, 11103284), (70, 5551642), (89, 4366460), (140, 2775821), (178, 2183230), (356, 1091615), (445, 873292), (623, 623780), (890, 436646), (1246, 311890), (1780, 218323), (2492, 155945), (3115, 124756), (6230, 62378), (12460, 31189)]