391445825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 532733760

約数和(自身を除く): 141287935

約数列:

[1, 5, 17, 25, 59, 67, 85, 233, 295, 335, 425, 1003, 1139, 1165, 1475, 1675, 3953, 3961, 5015, 5695, 5825, 13747, 15611, 19765, 19805, 25075, 28475, 67201, 68735, 78055, 98825, 99025, 233699, 265387, 336005, 343675, 390275, 921049, 1168495, 1326935, 1680025, 4605245, 5842475, 6634675, 15657833, 23026225, 78289165, 391445825]

約数ペア:

[(1, 391445825), (5, 78289165), (17, 23026225), (25, 15657833), (59, 6634675), (67, 5842475), (85, 4605245), (233, 1680025), (295, 1326935), (335, 1168495), (425, 921049), (1003, 390275), (1139, 343675), (1165, 336005), (1475, 265387), (1675, 233699), (3953, 99025), (3961, 98825), (5015, 78055), (5695, 68735), (5825, 67201), (13747, 28475), (15611, 25075), (19765, 19805)]