20203335

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 36694944

約数和(自身を除く): 16491609

約数列:

[1, 3, 5, 9, 15, 43, 45, 53, 129, 159, 197, 215, 265, 387, 477, 591, 645, 795, 985, 1773, 1935, 2279, 2385, 2955, 6837, 8471, 8865, 10441, 11395, 20511, 25413, 31323, 34185, 42355, 52205, 76239, 93969, 102555, 127065, 156615, 381195, 448963, 469845, 1346889, 2244815, 4040667, 6734445, 20203335]

約数ペア:

[(1, 20203335), (3, 6734445), (5, 4040667), (9, 2244815), (15, 1346889), (43, 469845), (45, 448963), (53, 381195), (129, 156615), (159, 127065), (197, 102555), (215, 93969), (265, 76239), (387, 52205), (477, 42355), (591, 34185), (645, 31323), (795, 25413), (985, 20511), (1773, 11395), (1935, 10441), (2279, 8865), (2385, 8471), (2955, 6837)]