18228760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2437}}^1$

素因数の和:2476

約数の個数: 64

約数和(自身を含む): 47394720

約数和(自身を除く): 29165960

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2437, 3740, 4874, 7480, 9748, 12185, 19496, 24370, 26807, 41429, 48740, 53614, 82858, 97480, 107228, 134035, 165716, 207145, 214456, 268070, 331432, 414290, 455719, 536140, 828580, 911438, 1072280, 1657160, 1822876, 2278595, 3645752, 4557190, 9114380, 18228760]

約数ペア:

[(1, 18228760), (2, 9114380), (4, 4557190), (5, 3645752), (8, 2278595), (10, 1822876), (11, 1657160), (17, 1072280), (20, 911438), (22, 828580), (34, 536140), (40, 455719), (44, 414290), (55, 331432), (68, 268070), (85, 214456), (88, 207145), (110, 165716), (136, 134035), (170, 107228), (187, 97480), (220, 82858), (340, 53614), (374, 48740), (440, 41429), (680, 26807), (748, 24370), (935, 19496), (1496, 12185), (1870, 9748), (2437, 7480), (3740, 4874)]