39899015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19801}}^1$

素因数の和:19850

約数の個数: 16

約数和(自身を含む): 53227776

約数和(自身を除く): 13328761

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 19801, 99005, 257413, 613831, 1287065, 3069155, 7979803, 39899015]

約数ペア:

[(1, 39899015), (5, 7979803), (13, 3069155), (31, 1287065), (65, 613831), (155, 257413), (403, 99005), (2015, 19801)]