280788475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{811}}^1\times {\mathrm{1259}}^1$

素因数の和:2091

約数の個数: 24

約数和(自身を含む): 380600640

約数和(自身を除く): 99812165

約数列:

[1, 5, 11, 25, 55, 275, 811, 1259, 4055, 6295, 8921, 13849, 20275, 31475, 44605, 69245, 223025, 346225, 1021049, 5105245, 11231539, 25526225, 56157695, 280788475]

約数ペア:

[(1, 280788475), (5, 56157695), (11, 25526225), (25, 11231539), (55, 5105245), (275, 1021049), (811, 346225), (1259, 223025), (4055, 69245), (6295, 44605), (8921, 31475), (13849, 20275)]