989898008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{991}}^1\times {\mathrm{11351}}^1$

素因数の和:12359

約数の個数: 32

約数和(自身を含む): 2027013120

約数和(自身を除く): 1037115112

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 991, 1982, 3964, 7928, 10901, 11351, 21802, 22702, 43604, 45404, 87208, 90808, 124861, 249722, 499444, 998888, 11248841, 22497682, 44995364, 89990728, 123737251, 247474502, 494949004, 989898008]

約数ペア:

[(1, 989898008), (2, 494949004), (4, 247474502), (8, 123737251), (11, 89990728), (22, 44995364), (44, 22497682), (88, 11248841), (991, 998888), (1982, 499444), (3964, 249722), (7928, 124861), (10901, 90808), (11351, 87208), (21802, 45404), (22702, 43604)]