128840690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{3011}}^1$

素因数の和:3418

約数の個数: 32

約数和(自身を含む): 253730880

約数和(自身を除く): 124890190

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 389, 778, 1945, 3011, 3890, 4279, 6022, 8558, 15055, 21395, 30110, 33121, 42790, 66242, 165605, 331210, 1171279, 2342558, 5856395, 11712790, 12884069, 25768138, 64420345, 128840690]

約数ペア:

[(1, 128840690), (2, 64420345), (5, 25768138), (10, 12884069), (11, 11712790), (22, 5856395), (55, 2342558), (110, 1171279), (389, 331210), (778, 165605), (1945, 66242), (3011, 42790), (3890, 33121), (4279, 30110), (6022, 21395), (8558, 15055)]