20195405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{4027}}^1$

素因数の和:4108

約数の個数: 16

約数和(自身を含む): 26101440

約数和(自身を除く): 5906035

約数列:

[1, 5, 17, 59, 85, 295, 1003, 4027, 5015, 20135, 68459, 237593, 342295, 1187965, 4039081, 20195405]

約数ペア:

[(1, 20195405), (5, 4039081), (17, 1187965), (59, 342295), (85, 237593), (295, 68459), (1003, 20135), (4027, 5015)]