721820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 1759968

約数和(自身を除く): 1038148

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 193, 220, 340, 374, 386, 748, 772, 935, 965, 1870, 1930, 2123, 3281, 3740, 3860, 4246, 6562, 8492, 10615, 13124, 16405, 21230, 32810, 36091, 42460, 65620, 72182, 144364, 180455, 360910, 721820]

約数ペア:

[(1, 721820), (2, 360910), (4, 180455), (5, 144364), (10, 72182), (11, 65620), (17, 42460), (20, 36091), (22, 32810), (34, 21230), (44, 16405), (55, 13124), (68, 10615), (85, 8492), (110, 6562), (170, 4246), (187, 3860), (193, 3740), (220, 3281), (340, 2123), (374, 1930), (386, 1870), (748, 965), (772, 935)]