87347980

素因数分解:

$2^2\times 5^1\times {\mathrm{1471}}^1\times {\mathrm{2969}}^1$

素因数の和:4449

約数の個数: 24

約数和(自身を含む): 183617280

約数和(自身を除く): 96269300

約数列:

[1, 2, 4, 5, 10, 20, 1471, 2942, 2969, 5884, 5938, 7355, 11876, 14710, 14845, 29420, 29690, 59380, 4367399, 8734798, 17469596, 21836995, 43673990, 87347980]

約数ペア:

[(1, 87347980), (2, 43673990), (4, 21836995), (5, 17469596), (10, 8734798), (20, 4367399), (1471, 59380), (2942, 29690), (2969, 29420), (5884, 14845), (5938, 14710), (7355, 11876)]