287885540

素因数分解:

$2^2\times 5^1\times {\mathrm{2081}}^1\times {\mathrm{6917}}^1$

素因数の和:9007

約数の個数: 24

約数和(自身を含む): 604937592

約数和(自身を除く): 317052052

約数列:

[1, 2, 4, 5, 10, 20, 2081, 4162, 6917, 8324, 10405, 13834, 20810, 27668, 34585, 41620, 69170, 138340, 14394277, 28788554, 57577108, 71971385, 143942770, 287885540]

約数ペア:

[(1, 287885540), (2, 143942770), (4, 71971385), (5, 57577108), (10, 28788554), (20, 14394277), (2081, 138340), (4162, 69170), (6917, 41620), (8324, 34585), (10405, 27668), (13834, 20810)]