28709060

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 63504000

約数和(自身を除く): 34794940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 139, 230, 278, 449, 460, 556, 695, 898, 1390, 1796, 2245, 2780, 3197, 4490, 6394, 8980, 10327, 12788, 15985, 20654, 31970, 41308, 51635, 62411, 63940, 103270, 124822, 206540, 249644, 312055, 624110, 1248220, 1435453, 2870906, 5741812, 7177265, 14354530, 28709060]

約数ペア:

[(1, 28709060), (2, 14354530), (4, 7177265), (5, 5741812), (10, 2870906), (20, 1435453), (23, 1248220), (46, 624110), (92, 312055), (115, 249644), (139, 206540), (230, 124822), (278, 103270), (449, 63940), (460, 62411), (556, 51635), (695, 41308), (898, 31970), (1390, 20654), (1796, 15985), (2245, 12788), (2780, 10327), (3197, 8980), (4490, 6394)]