12820620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1361}}^1$

素因数の和:1530

約数の個数: 48

約数和(自身を含む): 36152928

約数和(自身を除く): 23332308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1361, 1570, 1884, 2355, 2722, 3140, 4083, 4710, 5444, 6805, 8166, 9420, 13610, 16332, 20415, 27220, 40830, 81660, 213677, 427354, 641031, 854708, 1068385, 1282062, 2136770, 2564124, 3205155, 4273540, 6410310, 12820620]

約数ペア:

[(1, 12820620), (2, 6410310), (3, 4273540), (4, 3205155), (5, 2564124), (6, 2136770), (10, 1282062), (12, 1068385), (15, 854708), (20, 641031), (30, 427354), (60, 213677), (157, 81660), (314, 40830), (471, 27220), (628, 20415), (785, 16332), (942, 13610), (1361, 9420), (1570, 8166), (1884, 6805), (2355, 5444), (2722, 4710), (3140, 4083)]