18712360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7669}}^1$

素因数の和:7741

約数の個数: 32

約数和(自身を含む): 42798600

約数和(自身を除く): 24086240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7669, 15338, 30676, 38345, 61352, 76690, 153380, 306760, 467809, 935618, 1871236, 2339045, 3742472, 4678090, 9356180, 18712360]

約数ペア:

[(1, 18712360), (2, 9356180), (4, 4678090), (5, 3742472), (8, 2339045), (10, 1871236), (20, 935618), (40, 467809), (61, 306760), (122, 153380), (244, 76690), (305, 61352), (488, 38345), (610, 30676), (1220, 15338), (2440, 7669)]