81164120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{119359}}^1$

素因数の和:119387

約数の個数: 32

約数和(自身を含む): 193363200

約数和(自身を除く): 112199080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 119359, 238718, 477436, 596795, 954872, 1193590, 2029103, 2387180, 4058206, 4774360, 8116412, 10145515, 16232824, 20291030, 40582060, 81164120]

約数ペア:

[(1, 81164120), (2, 40582060), (4, 20291030), (5, 16232824), (8, 10145515), (10, 8116412), (17, 4774360), (20, 4058206), (34, 2387180), (40, 2029103), (68, 1193590), (85, 954872), (136, 596795), (170, 477436), (340, 238718), (680, 119359)]