278281540

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{28571}}^1$

素因数の和:29067

約数の個数: 24

約数和(自身を含む): 585611712

約数和(自身を除く): 307330172

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 28571, 57142, 114284, 142855, 285710, 571420, 13914077, 27828154, 55656308, 69570385, 139140770, 278281540]

約数ペア:

[(1, 278281540), (2, 139140770), (4, 69570385), (5, 55656308), (10, 27828154), (20, 13914077), (487, 571420), (974, 285710), (1948, 142855), (2435, 114284), (4870, 57142), (9740, 28571)]