19490075

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{379}}^1$

素因数の和:428

約数の個数: 36

約数和(自身を含む): 28201320

約数和(自身を除く): 8711245

約数列:

[1, 5, 11, 17, 25, 55, 85, 121, 187, 275, 379, 425, 605, 935, 1895, 2057, 3025, 4169, 4675, 6443, 9475, 10285, 20845, 32215, 45859, 51425, 70873, 104225, 161075, 229295, 354365, 779603, 1146475, 1771825, 3898015, 19490075]

約数ペア:

[(1, 19490075), (5, 3898015), (11, 1771825), (17, 1146475), (25, 779603), (55, 354365), (85, 229295), (121, 161075), (187, 104225), (275, 70873), (379, 51425), (425, 45859), (605, 32215), (935, 20845), (1895, 10285), (2057, 9475), (3025, 6443), (4169, 4675)]