199972975

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{4079}}^1$

素因数の和:4179

約数の個数: 24

約数和(自身を含む): 259536960

約数和(自身を除く): 59563985

約数列:

[1, 5, 25, 37, 53, 185, 265, 925, 1325, 1961, 4079, 9805, 20395, 49025, 101975, 150923, 216187, 754615, 1080935, 3773075, 5404675, 7998919, 39994595, 199972975]

約数ペア:

[(1, 199972975), (5, 39994595), (25, 7998919), (37, 5404675), (53, 3773075), (185, 1080935), (265, 754615), (925, 216187), (1325, 150923), (1961, 101975), (4079, 49025), (9805, 20395)]