20249970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:539

約数の個数: 64

約数和(自身を含む): 52859520

約数和(自身を除く): 32609550

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 137, 195, 274, 379, 390, 411, 685, 758, 822, 1137, 1370, 1781, 1895, 2055, 2274, 3562, 3790, 4110, 4927, 5343, 5685, 8905, 9854, 10686, 11370, 14781, 17810, 24635, 26715, 29562, 49270, 51923, 53430, 73905, 103846, 147810, 155769, 259615, 311538, 519230, 674999, 778845, 1349998, 1557690, 2024997, 3374995, 4049994, 6749990, 10124985, 20249970]

約数ペア:

[(1, 20249970), (2, 10124985), (3, 6749990), (5, 4049994), (6, 3374995), (10, 2024997), (13, 1557690), (15, 1349998), (26, 778845), (30, 674999), (39, 519230), (65, 311538), (78, 259615), (130, 155769), (137, 147810), (195, 103846), (274, 73905), (379, 53430), (390, 51923), (411, 49270), (685, 29562), (758, 26715), (822, 24635), (1137, 17810), (1370, 14781), (1781, 11370), (1895, 10686), (2055, 9854), (2274, 8905), (3562, 5685), (3790, 5343), (4110, 4927)]