1900128535

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1\times {\mathrm{20183}}^1$

素因数の和:21198

約数の個数: 16

約数和(自身を含む): 2402703360

約数和(自身を除く): 502574825

約数列:

[1, 5, 19, 95, 991, 4955, 18829, 20183, 94145, 100915, 383477, 1917385, 20001353, 100006765, 380025707, 1900128535]

約数ペア:

[(1, 1900128535), (5, 380025707), (19, 100006765), (95, 20001353), (991, 1917385), (4955, 383477), (18829, 100915), (20183, 94145)]