309279280

素因数分解:

$2^4\times 5^1\times {\mathrm{3865991}}^1$

素因数の和:3866004

約数の個数: 20

約数和(自身を含む): 719074512

約数和(自身を除く): 409795232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3865991, 7731982, 15463964, 19329955, 30927928, 38659910, 61855856, 77319820, 154639640, 309279280]

約数ペア:

[(1, 309279280), (2, 154639640), (4, 77319820), (5, 61855856), (8, 38659910), (10, 30927928), (16, 19329955), (20, 15463964), (40, 7731982), (80, 3865991)]