71231560

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{7451}}^1$

素因数の和:7701

約数の個数: 32

約数和(自身を含む): 160963200

約数和(自身を除く): 89731640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 7451, 9560, 14902, 29804, 37255, 59608, 74510, 149020, 298040, 1780789, 3561578, 7123156, 8903945, 14246312, 17807890, 35615780, 71231560]

約数ペア:

[(1, 71231560), (2, 35615780), (4, 17807890), (5, 14246312), (8, 8903945), (10, 7123156), (20, 3561578), (40, 1780789), (239, 298040), (478, 149020), (956, 74510), (1195, 59608), (1912, 37255), (2390, 29804), (4780, 14902), (7451, 9560)]