28030415

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 41187840

約数和(自身を除く): 13157425

約数列:

[1, 5, 7, 19, 35, 61, 95, 133, 305, 427, 665, 691, 1159, 2135, 3455, 4837, 5795, 8113, 13129, 24185, 40565, 42151, 65645, 91903, 210755, 295057, 459515, 800869, 1475285, 4004345, 5606083, 28030415]

約数ペア:

[(1, 28030415), (5, 5606083), (7, 4004345), (19, 1475285), (35, 800869), (61, 459515), (95, 295057), (133, 210755), (305, 91903), (427, 65645), (665, 42151), (691, 40565), (1159, 24185), (2135, 13129), (3455, 8113), (4837, 5795)]