289299940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{2087}}^1$

素因数の和:2364

約数の個数: 48

約数和(自身を含む): 631411200

約数和(自身を除く): 342111260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 239, 290, 478, 580, 956, 1195, 2087, 2390, 4174, 4780, 6931, 8348, 10435, 13862, 20870, 27724, 34655, 41740, 60523, 69310, 121046, 138620, 242092, 302615, 498793, 605230, 997586, 1210460, 1995172, 2493965, 4987930, 9975860, 14464997, 28929994, 57859988, 72324985, 144649970, 289299940]

約数ペア:

[(1, 289299940), (2, 144649970), (4, 72324985), (5, 57859988), (10, 28929994), (20, 14464997), (29, 9975860), (58, 4987930), (116, 2493965), (145, 1995172), (239, 1210460), (290, 997586), (478, 605230), (580, 498793), (956, 302615), (1195, 242092), (2087, 138620), (2390, 121046), (4174, 69310), (4780, 60523), (6931, 41740), (8348, 34655), (10435, 27724), (13862, 20870)]