20296280

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5231}}^1$

素因数の和:5339

約数の個数: 32

約数和(自身を含む): 46146240

約数和(自身を除く): 25849960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 5231, 10462, 20924, 26155, 41848, 52310, 104620, 209240, 507407, 1014814, 2029628, 2537035, 4059256, 5074070, 10148140, 20296280]

約数ペア:

[(1, 20296280), (2, 10148140), (4, 5074070), (5, 4059256), (8, 2537035), (10, 2029628), (20, 1014814), (40, 507407), (97, 209240), (194, 104620), (388, 52310), (485, 41848), (776, 26155), (970, 20924), (1940, 10462), (3880, 5231)]