20287630

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:625

約数の個数: 64

約数和(自身を含む): 44478720

約数和(自身を除く): 24191090

約数列:

[1, 2, 5, 10, 11, 17, 19, 22, 34, 38, 55, 85, 95, 110, 170, 187, 190, 209, 323, 374, 418, 571, 646, 935, 1045, 1142, 1615, 1870, 2090, 2855, 3230, 3553, 5710, 6281, 7106, 9707, 10849, 12562, 17765, 19414, 21698, 31405, 35530, 48535, 54245, 62810, 97070, 106777, 108490, 119339, 184433, 213554, 238678, 368866, 533885, 596695, 922165, 1067770, 1193390, 1844330, 2028763, 4057526, 10143815, 20287630]

約数ペア:

[(1, 20287630), (2, 10143815), (5, 4057526), (10, 2028763), (11, 1844330), (17, 1193390), (19, 1067770), (22, 922165), (34, 596695), (38, 533885), (55, 368866), (85, 238678), (95, 213554), (110, 184433), (170, 119339), (187, 108490), (190, 106777), (209, 97070), (323, 62810), (374, 54245), (418, 48535), (571, 35530), (646, 31405), (935, 21698), (1045, 19414), (1142, 17765), (1615, 12562), (1870, 10849), (2090, 9707), (2855, 7106), (3230, 6281), (3553, 5710)]