128138478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1642801}}^1$

素因数の和:1642819

約数の個数: 16

約数和(自身を含む): 275990736

約数和(自身を除く): 147852258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 1642801, 3285602, 4928403, 9856806, 21356413, 42712826, 64069239, 128138478]

約数ペア:

[(1, 128138478), (2, 64069239), (3, 42712826), (6, 21356413), (13, 9856806), (26, 4928403), (39, 3285602), (78, 1642801)]