16401275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 24224640

約数和(自身を除く): 7823365

約数列:

[1, 5, 11, 19, 25, 43, 55, 73, 95, 209, 215, 275, 365, 473, 475, 803, 817, 1045, 1075, 1387, 1825, 2365, 3139, 4015, 4085, 5225, 6935, 8987, 11825, 15257, 15695, 20075, 20425, 34529, 34675, 44935, 59641, 76285, 78475, 172645, 224675, 298205, 381425, 656051, 863225, 1491025, 3280255, 16401275]

約数ペア:

[(1, 16401275), (5, 3280255), (11, 1491025), (19, 863225), (25, 656051), (43, 381425), (55, 298205), (73, 224675), (95, 172645), (209, 78475), (215, 76285), (275, 59641), (365, 44935), (473, 34675), (475, 34529), (803, 20425), (817, 20075), (1045, 15695), (1075, 15257), (1387, 11825), (1825, 8987), (2365, 6935), (3139, 5225), (4015, 4085)]