20796540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1279}}^1$

素因数の和:1562

約数の個数: 48

約数和(自身を含む): 58490880

約数和(自身を除く): 37694340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 271, 542, 813, 1084, 1279, 1355, 1626, 2558, 2710, 3252, 3837, 4065, 5116, 5420, 6395, 7674, 8130, 12790, 15348, 16260, 19185, 25580, 38370, 76740, 346609, 693218, 1039827, 1386436, 1733045, 2079654, 3466090, 4159308, 5199135, 6932180, 10398270, 20796540]

約数ペア:

[(1, 20796540), (2, 10398270), (3, 6932180), (4, 5199135), (5, 4159308), (6, 3466090), (10, 2079654), (12, 1733045), (15, 1386436), (20, 1039827), (30, 693218), (60, 346609), (271, 76740), (542, 38370), (813, 25580), (1084, 19185), (1279, 16260), (1355, 15348), (1626, 12790), (2558, 8130), (2710, 7674), (3252, 6395), (3837, 5420), (4065, 5116)]