19987090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^3$

素因数の和:159

約数の個数: 32

約数和(自身を含む): 38147760

約数和(自身を除く): 18160670

約数列:

[1, 2, 5, 10, 29, 41, 58, 82, 145, 205, 290, 410, 1189, 1681, 2378, 3362, 5945, 8405, 11890, 16810, 48749, 68921, 97498, 137842, 243745, 344605, 487490, 689210, 1998709, 3997418, 9993545, 19987090]

約数ペア:

[(1, 19987090), (2, 9993545), (5, 3997418), (10, 1998709), (29, 689210), (41, 487490), (58, 344605), (82, 243745), (145, 137842), (205, 97498), (290, 68921), (410, 48749), (1189, 16810), (1681, 11890), (2378, 8405), (3362, 5945)]