139310220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{331691}}^1$

素因数の和:331710

約数の個数: 48

約数和(自身を含む): 445794048

約数和(自身を除く): 306483828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 331691, 663382, 995073, 1326764, 1658455, 1990146, 2321837, 3316910, 3980292, 4643674, 4975365, 6633820, 6965511, 9287348, 9950730, 11609185, 13931022, 19901460, 23218370, 27862044, 34827555, 46436740, 69655110, 139310220]

約数ペア:

[(1, 139310220), (2, 69655110), (3, 46436740), (4, 34827555), (5, 27862044), (6, 23218370), (7, 19901460), (10, 13931022), (12, 11609185), (14, 9950730), (15, 9287348), (20, 6965511), (21, 6633820), (28, 4975365), (30, 4643674), (35, 3980292), (42, 3316910), (60, 2321837), (70, 1990146), (84, 1658455), (105, 1326764), (140, 995073), (210, 663382), (420, 331691)]