17799985

素因数分解:

$5^1\times 7^3\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 7601615

約数列:

[1, 5, 7, 35, 49, 97, 107, 245, 343, 485, 535, 679, 749, 1715, 3395, 3745, 4753, 5243, 10379, 23765, 26215, 33271, 36701, 51895, 72653, 166355, 183505, 363265, 508571, 2542855, 3559997, 17799985]

約数ペア:

[(1, 17799985), (5, 3559997), (7, 2542855), (35, 508571), (49, 363265), (97, 183505), (107, 166355), (245, 72653), (343, 51895), (485, 36701), (535, 33271), (679, 26215), (749, 23765), (1715, 10379), (3395, 5243), (3745, 4753)]