85787980

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{18731}}^1$

素因数の和:18969

約数の個数: 24

約数和(自身を含む): 180951120

約数和(自身を除く): 95163140

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 18731, 37462, 74924, 93655, 187310, 374620, 4289399, 8578798, 17157596, 21446995, 42893990, 85787980]

約数ペア:

[(1, 85787980), (2, 42893990), (4, 21446995), (5, 17157596), (10, 8578798), (20, 4289399), (229, 374620), (458, 187310), (916, 93655), (1145, 74924), (2290, 37462), (4580, 18731)]