286780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1103}}^1$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 649152

約数和(自身を除く): 362372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1103, 2206, 4412, 5515, 11030, 14339, 22060, 28678, 57356, 71695, 143390, 286780]

約数ペア:

[(1, 286780), (2, 143390), (4, 71695), (5, 57356), (10, 28678), (13, 22060), (20, 14339), (26, 11030), (52, 5515), (65, 4412), (130, 2206), (260, 1103)]