399990335

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{743}}^1\times {\mathrm{1607}}^1$

素因数の和:2422

約数の個数: 16

約数和(自身を含む): 488111616

約数和(自身を除く): 88121281

約数列:

[1, 5, 67, 335, 743, 1607, 3715, 8035, 49781, 107669, 248905, 538345, 1194001, 5970005, 79998067, 399990335]

約数ペア:

[(1, 399990335), (5, 79998067), (67, 5970005), (335, 1194001), (743, 538345), (1607, 248905), (3715, 107669), (8035, 49781)]