18489920

素因数分解:

$2^6\times 5^1\times {\mathrm{57781}}^1$

素因数の和:57798

約数の個数: 28

約数和(自身を含む): 44029884

約数和(自身を除く): 25539964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 57781, 115562, 231124, 288905, 462248, 577810, 924496, 1155620, 1848992, 2311240, 3697984, 4622480, 9244960, 18489920]

約数ペア:

[(1, 18489920), (2, 9244960), (4, 4622480), (5, 3697984), (8, 2311240), (10, 1848992), (16, 1155620), (20, 924496), (32, 577810), (40, 462248), (64, 288905), (80, 231124), (160, 115562), (320, 57781)]