28207985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13999}}^1$

素因数の和:14048

約数の個数: 16

約数和(自身を含む): 37632000

約数和(自身を除く): 9424015

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 13999, 69995, 181987, 433969, 909935, 2169845, 5641597, 28207985]

約数ペア:

[(1, 28207985), (5, 5641597), (13, 2169845), (31, 909935), (65, 433969), (155, 181987), (403, 69995), (2015, 13999)]