20451448

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{857}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 40669200

約数和(自身を除く): 20217752

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 157, 314, 628, 857, 1256, 1714, 2983, 3428, 5966, 6856, 11932, 16283, 23864, 32566, 65132, 130264, 134549, 269098, 538196, 1076392, 2556431, 5112862, 10225724, 20451448]

約数ペア:

[(1, 20451448), (2, 10225724), (4, 5112862), (8, 2556431), (19, 1076392), (38, 538196), (76, 269098), (152, 134549), (157, 130264), (314, 65132), (628, 32566), (857, 23864), (1256, 16283), (1714, 11932), (2983, 6856), (3428, 5966)]