87796990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{1087}}^1$

素因数の和:1332

約数の個数: 32

約数和(自身を含む): 162860544

約数和(自身を除く): 75063554

約数列:

[1, 2, 5, 10, 41, 82, 197, 205, 394, 410, 985, 1087, 1970, 2174, 5435, 8077, 10870, 16154, 40385, 44567, 80770, 89134, 214139, 222835, 428278, 445670, 1070695, 2141390, 8779699, 17559398, 43898495, 87796990]

約数ペア:

[(1, 87796990), (2, 43898495), (5, 17559398), (10, 8779699), (41, 2141390), (82, 1070695), (197, 445670), (205, 428278), (394, 222835), (410, 214139), (985, 89134), (1087, 80770), (1970, 44567), (2174, 40385), (5435, 16154), (8077, 10870)]