20052540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1103}}^1$

素因数の和:1219

約数の個数: 72

約数和(自身を含む): 61483968

約数和(自身を除く): 41431428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1103, 1212, 1515, 1818, 2020, 2206, 3030, 3309, 3636, 4412, 4545, 5515, 6060, 6618, 9090, 9927, 11030, 13236, 16545, 18180, 19854, 22060, 33090, 39708, 49635, 66180, 99270, 111403, 198540, 222806, 334209, 445612, 557015, 668418, 1002627, 1114030, 1336836, 1671045, 2005254, 2228060, 3342090, 4010508, 5013135, 6684180, 10026270, 20052540]

約数ペア:

[(1, 20052540), (2, 10026270), (3, 6684180), (4, 5013135), (5, 4010508), (6, 3342090), (9, 2228060), (10, 2005254), (12, 1671045), (15, 1336836), (18, 1114030), (20, 1002627), (30, 668418), (36, 557015), (45, 445612), (60, 334209), (90, 222806), (101, 198540), (180, 111403), (202, 99270), (303, 66180), (404, 49635), (505, 39708), (606, 33090), (909, 22060), (1010, 19854), (1103, 18180), (1212, 16545), (1515, 13236), (1818, 11030), (2020, 9927), (2206, 9090), (3030, 6618), (3309, 6060), (3636, 5515), (4412, 4545)]