20128830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{971}}^1$

素因数の和:1672

約数の個数: 32

約数和(自身を含む): 48428928

約数和(自身を除く): 28300098

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 691, 971, 1382, 1942, 2073, 2913, 3455, 4146, 4855, 5826, 6910, 9710, 10365, 14565, 20730, 29130, 670961, 1341922, 2012883, 3354805, 4025766, 6709610, 10064415, 20128830]

約数ペア:

[(1, 20128830), (2, 10064415), (3, 6709610), (5, 4025766), (6, 3354805), (10, 2012883), (15, 1341922), (30, 670961), (691, 29130), (971, 20730), (1382, 14565), (1942, 10365), (2073, 9710), (2913, 6910), (3455, 5826), (4146, 4855)]