72435620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1759}}^1$

素因数の和:1868

約数の個数: 48

約数和(自身を含む): 159667200

約数和(自身を除く): 87231580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 580, 710, 1420, 1759, 2059, 3518, 4118, 7036, 8236, 8795, 10295, 17590, 20590, 35180, 41180, 51011, 102022, 124889, 204044, 249778, 255055, 499556, 510110, 624445, 1020220, 1248890, 2497780, 3621781, 7243562, 14487124, 18108905, 36217810, 72435620]

約数ペア:

[(1, 72435620), (2, 36217810), (4, 18108905), (5, 14487124), (10, 7243562), (20, 3621781), (29, 2497780), (58, 1248890), (71, 1020220), (116, 624445), (142, 510110), (145, 499556), (284, 255055), (290, 249778), (355, 204044), (580, 124889), (710, 102022), (1420, 51011), (1759, 41180), (2059, 35180), (3518, 20590), (4118, 17590), (7036, 10295), (8236, 8795)]