27980751745

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{2542549}}^1$

素因数の和:2542656

約数の個数: 16

約数和(自身を含む): 35148211200

約数和(自身を除く): 7167459455

約数列:

[1, 5, 31, 71, 155, 355, 2201, 11005, 2542549, 12712745, 78819019, 180520979, 394095095, 902604895, 5596150349, 27980751745]

約数ペア:

[(1, 27980751745), (5, 5596150349), (31, 902604895), (71, 394095095), (155, 180520979), (355, 78819019), (2201, 12712745), (11005, 2542549)]