7940020

素因数分解:

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

素因数の和:241

約数の個数: 72

約数和(自身を含む): 19506312

約数和(自身を除く): 11566292

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 170, 187, 193, 220, 242, 340, 374, 386, 484, 605, 748, 772, 935, 965, 1210, 1870, 1930, 2057, 2123, 2420, 3281, 3740, 3860, 4114, 4246, 6562, 8228, 8492, 10285, 10615, 13124, 16405, 20570, 21230, 23353, 32810, 36091, 41140, 42460, 46706, 65620, 72182, 93412, 116765, 144364, 180455, 233530, 360910, 397001, 467060, 721820, 794002, 1588004, 1985005, 3970010, 7940020]

約数ペア:

[(1, 7940020), (2, 3970010), (4, 1985005), (5, 1588004), (10, 794002), (11, 721820), (17, 467060), (20, 397001), (22, 360910), (34, 233530), (44, 180455), (55, 144364), (68, 116765), (85, 93412), (110, 72182), (121, 65620), (170, 46706), (187, 42460), (193, 41140), (220, 36091), (242, 32810), (340, 23353), (374, 21230), (386, 20570), (484, 16405), (605, 13124), (748, 10615), (772, 10285), (935, 8492), (965, 8228), (1210, 6562), (1870, 4246), (1930, 4114), (2057, 3860), (2123, 3740), (2420, 3281)]