81380628

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{322939}}^1$

素因数の和:322956

約数の個数: 36

約数和(自身を含む): 235100320

約数和(自身を除く): 153719692

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 322939, 645878, 968817, 1291756, 1937634, 2260573, 2906451, 3875268, 4521146, 5812902, 6781719, 9042292, 11625804, 13563438, 20345157, 27126876, 40690314, 81380628]

約数ペア:

[(1, 81380628), (2, 40690314), (3, 27126876), (4, 20345157), (6, 13563438), (7, 11625804), (9, 9042292), (12, 6781719), (14, 5812902), (18, 4521146), (21, 3875268), (28, 2906451), (36, 2260573), (42, 1937634), (63, 1291756), (84, 968817), (126, 645878), (252, 322939)]