81313505

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 123327360

約数和(自身を除く): 42013855

約数列:

[1, 5, 7, 13, 35, 59, 65, 91, 169, 233, 295, 413, 455, 767, 845, 1165, 1183, 1631, 2065, 3029, 3835, 5369, 5915, 8155, 9971, 13747, 15145, 21203, 26845, 39377, 49855, 68735, 69797, 96229, 106015, 178711, 196885, 275639, 348985, 481145, 893555, 1250977, 1378195, 2323243, 6254885, 11616215, 16262701, 81313505]

約数ペア:

[(1, 81313505), (5, 16262701), (7, 11616215), (13, 6254885), (35, 2323243), (59, 1378195), (65, 1250977), (91, 893555), (169, 481145), (233, 348985), (295, 275639), (413, 196885), (455, 178711), (767, 106015), (845, 96229), (1165, 69797), (1183, 68735), (1631, 49855), (2065, 39377), (3029, 26845), (3835, 21203), (5369, 15145), (5915, 13747), (8155, 9971)]