20128642

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{619}}^1$

素因数の和:921

約数の個数: 16

約数和(自身を含む): 30801600

約数和(自身を除く): 10672958

約数列:

[1, 2, 71, 142, 229, 458, 619, 1238, 16259, 32518, 43949, 87898, 141751, 283502, 10064321, 20128642]

約数ペア:

[(1, 20128642), (2, 10064321), (71, 283502), (142, 141751), (229, 87898), (458, 43949), (619, 32518), (1238, 16259)]