38802580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 85050000

約数和(自身を除く): 46247420

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 149, 290, 298, 449, 580, 596, 745, 898, 1490, 1796, 2245, 2980, 4321, 4490, 8642, 8980, 13021, 17284, 21605, 26042, 43210, 52084, 65105, 66901, 86420, 130210, 133802, 260420, 267604, 334505, 669010, 1338020, 1940129, 3880258, 7760516, 9700645, 19401290, 38802580]

約数ペア:

[(1, 38802580), (2, 19401290), (4, 9700645), (5, 7760516), (10, 3880258), (20, 1940129), (29, 1338020), (58, 669010), (116, 334505), (145, 267604), (149, 260420), (290, 133802), (298, 130210), (449, 86420), (580, 66901), (596, 65105), (745, 52084), (898, 43210), (1490, 26042), (1796, 21605), (2245, 17284), (2980, 13021), (4321, 8980), (4490, 8642)]