20866890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1709}}^1$

素因数の和:1767

約数の個数: 64

約数和(自身を含む): 56142720

約数和(自身を除く): 35275830

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 37, 55, 66, 74, 110, 111, 165, 185, 222, 330, 370, 407, 555, 814, 1110, 1221, 1709, 2035, 2442, 3418, 4070, 5127, 6105, 8545, 10254, 12210, 17090, 18799, 25635, 37598, 51270, 56397, 63233, 93995, 112794, 126466, 187990, 189699, 281985, 316165, 379398, 563970, 632330, 695563, 948495, 1391126, 1896990, 2086689, 3477815, 4173378, 6955630, 10433445, 20866890]

約数ペア:

[(1, 20866890), (2, 10433445), (3, 6955630), (5, 4173378), (6, 3477815), (10, 2086689), (11, 1896990), (15, 1391126), (22, 948495), (30, 695563), (33, 632330), (37, 563970), (55, 379398), (66, 316165), (74, 281985), (110, 189699), (111, 187990), (165, 126466), (185, 112794), (222, 93995), (330, 63233), (370, 56397), (407, 51270), (555, 37598), (814, 25635), (1110, 18799), (1221, 17090), (1709, 12210), (2035, 10254), (2442, 8545), (3418, 6105), (4070, 5127)]