20278064

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21481}}^1$

素因数の和:21548

約数の個数: 20

約数和(自身を含む): 39956520

約数和(自身を除く): 19678456

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21481, 42962, 85924, 171848, 343696, 1267379, 2534758, 5069516, 10139032, 20278064]

約数ペア:

[(1, 20278064), (2, 10139032), (4, 5069516), (8, 2534758), (16, 1267379), (59, 343696), (118, 171848), (236, 85924), (472, 42962), (944, 21481)]