254625980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{787}}^1\times {\mathrm{2311}}^1$

素因数の和:3114

約数の個数: 48

約数和(自身を含む): 612143616

約数和(自身を除く): 357517636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 787, 1574, 2311, 3148, 3935, 4622, 5509, 7870, 9244, 11018, 11555, 15740, 16177, 22036, 23110, 27545, 32354, 46220, 55090, 64708, 80885, 110180, 161770, 323540, 1818757, 3637514, 7275028, 9093785, 12731299, 18187570, 25462598, 36375140, 50925196, 63656495, 127312990, 254625980]

約数ペア:

[(1, 254625980), (2, 127312990), (4, 63656495), (5, 50925196), (7, 36375140), (10, 25462598), (14, 18187570), (20, 12731299), (28, 9093785), (35, 7275028), (70, 3637514), (140, 1818757), (787, 323540), (1574, 161770), (2311, 110180), (3148, 80885), (3935, 64708), (4622, 55090), (5509, 46220), (7870, 32354), (9244, 27545), (11018, 23110), (11555, 22036), (15740, 16177)]