28754680

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7411}}^1$

素因数の和:7519

約数の個数: 32

約数和(自身を含む): 65373840

約数和(自身を除く): 36619160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 7411, 14822, 29644, 37055, 59288, 74110, 148220, 296440, 718867, 1437734, 2875468, 3594335, 5750936, 7188670, 14377340, 28754680]

約数ペア:

[(1, 28754680), (2, 14377340), (4, 7188670), (5, 5750936), (8, 3594335), (10, 2875468), (20, 1437734), (40, 718867), (97, 296440), (194, 148220), (388, 74110), (485, 59288), (776, 37055), (970, 29644), (1940, 14822), (3880, 7411)]