161857240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109363}}^1$

素因数の和:109411

約数の個数: 32

約数和(自身を含む): 374024880

約数和(自身を除く): 212167640

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 109363, 218726, 437452, 546815, 874904, 1093630, 2187260, 4046431, 4374520, 8092862, 16185724, 20232155, 32371448, 40464310, 80928620, 161857240]

約数ペア:

[(1, 161857240), (2, 80928620), (4, 40464310), (5, 32371448), (8, 20232155), (10, 16185724), (20, 8092862), (37, 4374520), (40, 4046431), (74, 2187260), (148, 1093630), (185, 874904), (296, 546815), (370, 437452), (740, 218726), (1480, 109363)]