79952020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{2081}}^1$

素因数の和:2220

約数の個数: 48

約数和(自身を含む): 179435088

約数和(自身を除く): 99483068

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 113, 170, 226, 340, 452, 565, 1130, 1921, 2081, 2260, 3842, 4162, 7684, 8324, 9605, 10405, 19210, 20810, 35377, 38420, 41620, 70754, 141508, 176885, 235153, 353770, 470306, 707540, 940612, 1175765, 2351530, 3997601, 4703060, 7995202, 15990404, 19988005, 39976010, 79952020]

約数ペア:

[(1, 79952020), (2, 39976010), (4, 19988005), (5, 15990404), (10, 7995202), (17, 4703060), (20, 3997601), (34, 2351530), (68, 1175765), (85, 940612), (113, 707540), (170, 470306), (226, 353770), (340, 235153), (452, 176885), (565, 141508), (1130, 70754), (1921, 41620), (2081, 38420), (2260, 35377), (3842, 20810), (4162, 19210), (7684, 10405), (8324, 9605)]