20181835

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^2\times {\mathrm{59}}^1$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 25896240

約数和(自身を除く): 5714405

約数列:

[1, 5, 37, 43, 59, 185, 215, 295, 1591, 1849, 2183, 2537, 7955, 9245, 10915, 12685, 68413, 93869, 109091, 342065, 469345, 545455, 4036367, 20181835]

約数ペア:

[(1, 20181835), (5, 4036367), (37, 545455), (43, 469345), (59, 342065), (185, 109091), (215, 93869), (295, 68413), (1591, 12685), (1849, 10915), (2183, 9245), (2537, 7955)]