20565165584

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{354181}}^1$

素因数の和:354399

約数の個数: 40

約数和(自身を含む): 42161825280

約数和(自身を除く): 21596659696

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 191, 304, 382, 764, 1528, 3056, 3629, 7258, 14516, 29032, 58064, 354181, 708362, 1416724, 2833448, 5666896, 6729439, 13458878, 26917756, 53835512, 67648571, 107671024, 135297142, 270594284, 541188568, 1082377136, 1285322849, 2570645698, 5141291396, 10282582792, 20565165584]

約数ペア:

[(1, 20565165584), (2, 10282582792), (4, 5141291396), (8, 2570645698), (16, 1285322849), (19, 1082377136), (38, 541188568), (76, 270594284), (152, 135297142), (191, 107671024), (304, 67648571), (382, 53835512), (764, 26917756), (1528, 13458878), (3056, 6729439), (3629, 5666896), (7258, 2833448), (14516, 1416724), (29032, 708362), (58064, 354181)]