428680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1531}}^1$

素因数の和:1549

約数の個数: 32

約数和(自身を含む): 1103040

約数和(自身を除く): 674360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1531, 3062, 6124, 7655, 10717, 12248, 15310, 21434, 30620, 42868, 53585, 61240, 85736, 107170, 214340, 428680]

約数ペア:

[(1, 428680), (2, 214340), (4, 107170), (5, 85736), (7, 61240), (8, 53585), (10, 42868), (14, 30620), (20, 21434), (28, 15310), (35, 12248), (40, 10717), (56, 7655), (70, 6124), (140, 3062), (280, 1531)]