389774680

素因数分解:

$2^3\times 5^1\times {\mathrm{673}}^1\times {\mathrm{14479}}^1$

素因数の和:15163

約数の個数: 32

約数和(自身を含む): 878356800

約数和(自身を除く): 488582120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 673, 1346, 2692, 3365, 5384, 6730, 13460, 14479, 26920, 28958, 57916, 72395, 115832, 144790, 289580, 579160, 9744367, 19488734, 38977468, 48721835, 77954936, 97443670, 194887340, 389774680]

約数ペア:

[(1, 389774680), (2, 194887340), (4, 97443670), (5, 77954936), (8, 48721835), (10, 38977468), (20, 19488734), (40, 9744367), (673, 579160), (1346, 289580), (2692, 144790), (3365, 115832), (5384, 72395), (6730, 57916), (13460, 28958), (14479, 26920)]