890303980

素因数分解:

$2^2\times 5^1\times {\mathrm{2053}}^1\times {\mathrm{21683}}^1$

素因数の和:23745

約数の個数: 24

約数和(自身を含む): 1870635312

約数和(自身を除く): 980331332

約数列:

[1, 2, 4, 5, 10, 20, 2053, 4106, 8212, 10265, 20530, 21683, 41060, 43366, 86732, 108415, 216830, 433660, 44515199, 89030398, 178060796, 222575995, 445151990, 890303980]

約数ペア:

[(1, 890303980), (2, 445151990), (4, 222575995), (5, 178060796), (10, 89030398), (20, 44515199), (2053, 433660), (4106, 216830), (8212, 108415), (10265, 86732), (20530, 43366), (21683, 41060)]