249210220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{2693}}^1$

素因数の和:3370

約数の個数: 48

約数和(自身を含む): 599231808

約数和(自身を除く): 350021588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 661, 1322, 2644, 2693, 3305, 4627, 5386, 6610, 9254, 10772, 13220, 13465, 18508, 18851, 23135, 26930, 37702, 46270, 53860, 75404, 92540, 94255, 188510, 377020, 1780073, 3560146, 7120292, 8900365, 12460511, 17800730, 24921022, 35601460, 49842044, 62302555, 124605110, 249210220]

約数ペア:

[(1, 249210220), (2, 124605110), (4, 62302555), (5, 49842044), (7, 35601460), (10, 24921022), (14, 17800730), (20, 12460511), (28, 8900365), (35, 7120292), (70, 3560146), (140, 1780073), (661, 377020), (1322, 188510), (2644, 94255), (2693, 92540), (3305, 75404), (4627, 53860), (5386, 46270), (6610, 37702), (9254, 26930), (10772, 23135), (13220, 18851), (13465, 18508)]