55143280

素因数分解:

$2^4\times 5^1\times {\mathrm{689291}}^1$

素因数の和:689304

約数の個数: 20

約数和(自身を含む): 128208312

約数和(自身を除く): 73065032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 689291, 1378582, 2757164, 3446455, 5514328, 6892910, 11028656, 13785820, 27571640, 55143280]

約数ペア:

[(1, 55143280), (2, 27571640), (4, 13785820), (5, 11028656), (8, 6892910), (10, 5514328), (16, 3446455), (20, 2757164), (40, 1378582), (80, 689291)]