180562280

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{11257}}^1$

素因数の和:11669

約数の個数: 32

約数和(自身を含む): 407314440

約数和(自身を除く): 226752160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 11257, 16040, 22514, 45028, 56285, 90056, 112570, 225140, 450280, 4514057, 9028114, 18056228, 22570285, 36112456, 45140570, 90281140, 180562280]

約数ペア:

[(1, 180562280), (2, 90281140), (4, 45140570), (5, 36112456), (8, 22570285), (10, 18056228), (20, 9028114), (40, 4514057), (401, 450280), (802, 225140), (1604, 112570), (2005, 90056), (3208, 56285), (4010, 45028), (8020, 22514), (11257, 16040)]