68491475

素因数分解:

$5^2\times {\mathrm{13}}^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:121

約数の個数: 48

約数和(自身を含む): 97389600

約数和(自身を除く): 28898125

約数列:

[1, 5, 13, 25, 29, 43, 65, 145, 169, 215, 325, 377, 559, 725, 845, 1075, 1247, 1885, 2197, 2795, 4225, 4901, 6235, 7267, 9425, 10985, 13975, 16211, 24505, 31175, 36335, 54925, 63713, 81055, 94471, 122525, 181675, 210743, 318565, 405275, 472355, 1053715, 1592825, 2361775, 2739659, 5268575, 13698295, 68491475]

約数ペア:

[(1, 68491475), (5, 13698295), (13, 5268575), (25, 2739659), (29, 2361775), (43, 1592825), (65, 1053715), (145, 472355), (169, 405275), (215, 318565), (325, 210743), (377, 181675), (559, 122525), (725, 94471), (845, 81055), (1075, 63713), (1247, 54925), (1885, 36335), (2197, 31175), (2795, 24505), (4225, 16211), (4901, 13975), (6235, 10985), (7267, 9425)]