71078020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1237}}^1$

素因数の和:1289

約数の個数: 72

約数和(自身を含む): 171274824

約数和(自身を除く): 100196804

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 169, 170, 221, 260, 338, 340, 442, 676, 845, 884, 1105, 1237, 1690, 2210, 2474, 2873, 3380, 4420, 4948, 5746, 6185, 11492, 12370, 14365, 16081, 21029, 24740, 28730, 32162, 42058, 57460, 64324, 80405, 84116, 105145, 160810, 209053, 210290, 273377, 321620, 418106, 420580, 546754, 836212, 1045265, 1093508, 1366885, 2090530, 2733770, 3553901, 4181060, 5467540, 7107802, 14215604, 17769505, 35539010, 71078020]

約数ペア:

[(1, 71078020), (2, 35539010), (4, 17769505), (5, 14215604), (10, 7107802), (13, 5467540), (17, 4181060), (20, 3553901), (26, 2733770), (34, 2090530), (52, 1366885), (65, 1093508), (68, 1045265), (85, 836212), (130, 546754), (169, 420580), (170, 418106), (221, 321620), (260, 273377), (338, 210290), (340, 209053), (442, 160810), (676, 105145), (845, 84116), (884, 80405), (1105, 64324), (1237, 57460), (1690, 42058), (2210, 32162), (2474, 28730), (2873, 24740), (3380, 21029), (4420, 16081), (4948, 14365), (5746, 12370), (6185, 11492)]