168800920

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{17657}}^1$

素因数の和:17907

約数の個数: 32

約数和(自身を含む): 381412800

約数和(自身を除く): 212611880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 17657, 35314, 70628, 88285, 141256, 176570, 353140, 706280, 4220023, 8440046, 16880092, 21100115, 33760184, 42200230, 84400460, 168800920]

約数ペア:

[(1, 168800920), (2, 84400460), (4, 42200230), (5, 33760184), (8, 21100115), (10, 16880092), (20, 8440046), (40, 4220023), (239, 706280), (478, 353140), (956, 176570), (1195, 141256), (1912, 88285), (2390, 70628), (4780, 35314), (9560, 17657)]