217420806920

素因数分解:

$2^3\times 5^1\times {\mathrm{5435520173}}^1$

素因数の和:5435520184

約数の個数: 16

約数和(自身を含む): 489196815660

約数和(自身を除く): 271776008740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5435520173, 10871040346, 21742080692, 27177600865, 43484161384, 54355201730, 108710403460, 217420806920]

約数ペア:

[(1, 217420806920), (2, 108710403460), (4, 54355201730), (5, 43484161384), (8, 27177600865), (10, 21742080692), (20, 10871040346), (40, 5435520173)]