81265590

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{128993}}^1$

素因数の和:129013

約数の個数: 48

約数和(自身を含む): 241476768

約数和(自身を除く): 160211178

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 128993, 257986, 386979, 644965, 773958, 902951, 1160937, 1289930, 1805902, 1934895, 2321874, 2708853, 3869790, 4514755, 5417706, 5804685, 8126559, 9029510, 11609370, 13544265, 16253118, 27088530, 40632795, 81265590]

約数ペア:

[(1, 81265590), (2, 40632795), (3, 27088530), (5, 16253118), (6, 13544265), (7, 11609370), (9, 9029510), (10, 8126559), (14, 5804685), (15, 5417706), (18, 4514755), (21, 3869790), (30, 2708853), (35, 2321874), (42, 1934895), (45, 1805902), (63, 1289930), (70, 1160937), (90, 902951), (105, 773958), (126, 644965), (210, 386979), (315, 257986), (630, 128993)]