19769920

素因数分解:

$2^6\times 5^1\times {\mathrm{61781}}^1$

素因数の和:61798

約数の個数: 28

約数和(自身を含む): 47077884

約数和(自身を除く): 27307964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 61781, 123562, 247124, 308905, 494248, 617810, 988496, 1235620, 1976992, 2471240, 3953984, 4942480, 9884960, 19769920]

約数ペア:

[(1, 19769920), (2, 9884960), (4, 4942480), (5, 3953984), (8, 2471240), (10, 1976992), (16, 1235620), (20, 988496), (32, 617810), (40, 494248), (64, 308905), (80, 247124), (160, 123562), (320, 61781)]