28356220

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{12547}}^1$

素因数の和:12669

約数の個数: 24

約数和(自身を含む): 60079824

約数和(自身を除く): 31723604

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 12547, 25094, 50188, 62735, 125470, 250940, 1417811, 2835622, 5671244, 7089055, 14178110, 28356220]

約数ペア:

[(1, 28356220), (2, 14178110), (4, 7089055), (5, 5671244), (10, 2835622), (20, 1417811), (113, 250940), (226, 125470), (452, 62735), (565, 50188), (1130, 25094), (2260, 12547)]