28203695

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:635

約数の個数: 32

約数和(自身を含む): 39372480

約数和(自身を除く): 11168785

約数列:

[1, 5, 13, 19, 41, 65, 95, 205, 247, 533, 557, 779, 1235, 2665, 2785, 3895, 7241, 10127, 10583, 22837, 36205, 50635, 52915, 114185, 137579, 296881, 433903, 687895, 1484405, 2169515, 5640739, 28203695]

約数ペア:

[(1, 28203695), (5, 5640739), (13, 2169515), (19, 1484405), (41, 687895), (65, 433903), (95, 296881), (205, 137579), (247, 114185), (533, 52915), (557, 50635), (779, 36205), (1235, 22837), (2665, 10583), (2785, 10127), (3895, 7241)]