787020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1009}}^1$

素因数の和:1034

約数の個数: 48

約数和(自身を含む): 2375520

約数和(自身を除く): 1588500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1009, 2018, 3027, 4036, 5045, 6054, 10090, 12108, 13117, 15135, 20180, 26234, 30270, 39351, 52468, 60540, 65585, 78702, 131170, 157404, 196755, 262340, 393510, 787020]

約数ペア:

[(1, 787020), (2, 393510), (3, 262340), (4, 196755), (5, 157404), (6, 131170), (10, 78702), (12, 65585), (13, 60540), (15, 52468), (20, 39351), (26, 30270), (30, 26234), (39, 20180), (52, 15135), (60, 13117), (65, 12108), (78, 10090), (130, 6054), (156, 5045), (195, 4036), (260, 3027), (390, 2018), (780, 1009)]