638248890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{709}}^1\times {\mathrm{811}}^1$

素因数の和:1567

約数の個数: 64

約数和(自身を含む): 1577358720

約数和(自身を除く): 939109830

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 185, 222, 370, 555, 709, 811, 1110, 1418, 1622, 2127, 2433, 3545, 4055, 4254, 4866, 7090, 8110, 10635, 12165, 21270, 24330, 26233, 30007, 52466, 60014, 78699, 90021, 131165, 150035, 157398, 180042, 262330, 300070, 393495, 450105, 574999, 786990, 900210, 1149998, 1724997, 2874995, 3449994, 5749990, 8624985, 17249970, 21274963, 42549926, 63824889, 106374815, 127649778, 212749630, 319124445, 638248890]

約数ペア:

[(1, 638248890), (2, 319124445), (3, 212749630), (5, 127649778), (6, 106374815), (10, 63824889), (15, 42549926), (30, 21274963), (37, 17249970), (74, 8624985), (111, 5749990), (185, 3449994), (222, 2874995), (370, 1724997), (555, 1149998), (709, 900210), (811, 786990), (1110, 574999), (1418, 450105), (1622, 393495), (2127, 300070), (2433, 262330), (3545, 180042), (4055, 157398), (4254, 150035), (4866, 131165), (7090, 90021), (8110, 78699), (10635, 60014), (12165, 52466), (21270, 30007), (24330, 26233)]