398732012

素因数分解:

$2^2\times 7^3\times {\mathrm{290621}}^1$

素因数の和:290646

約数の個数: 24

約数和(自身を含む): 813741600

約数和(自身を除く): 415009588

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 290621, 581242, 1162484, 2034347, 4068694, 8137388, 14240429, 28480858, 56961716, 99683003, 199366006, 398732012]

約数ペア:

[(1, 398732012), (2, 199366006), (4, 99683003), (7, 56961716), (14, 28480858), (28, 14240429), (49, 8137388), (98, 4068694), (196, 2034347), (343, 1162484), (686, 581242), (1372, 290621)]