18401240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3217}}^1$

素因数の和:3252

約数の個数: 64

約数和(自身を含む): 48656160

約数和(自身を除く): 30254920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3217, 5720, 6434, 12868, 16085, 25736, 32170, 35387, 41821, 64340, 70774, 83642, 128680, 141548, 167284, 176935, 209105, 283096, 334568, 353870, 418210, 460031, 707740, 836420, 920062, 1415480, 1672840, 1840124, 2300155, 3680248, 4600310, 9200620, 18401240]

約数ペア:

[(1, 18401240), (2, 9200620), (4, 4600310), (5, 3680248), (8, 2300155), (10, 1840124), (11, 1672840), (13, 1415480), (20, 920062), (22, 836420), (26, 707740), (40, 460031), (44, 418210), (52, 353870), (55, 334568), (65, 283096), (88, 209105), (104, 176935), (110, 167284), (130, 141548), (143, 128680), (220, 83642), (260, 70774), (286, 64340), (440, 41821), (520, 35387), (572, 32170), (715, 25736), (1144, 16085), (1430, 12868), (2860, 6434), (3217, 5720)]