77378980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{552707}}^1$

素因数の和:552723

約数の個数: 24

約数和(自身を含む): 185709888

約数和(自身を除く): 108330908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 552707, 1105414, 2210828, 2763535, 3868949, 5527070, 7737898, 11054140, 15475796, 19344745, 38689490, 77378980]

約数ペア:

[(1, 77378980), (2, 38689490), (4, 19344745), (5, 15475796), (7, 11054140), (10, 7737898), (14, 5527070), (20, 3868949), (28, 2763535), (35, 2210828), (70, 1105414), (140, 552707)]