18943620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2011}}^1$

素因数の和:2180

約数の個数: 48

約数和(自身を含む): 53406528

約数和(自身を除く): 34462908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 2011, 2355, 3140, 4022, 4710, 6033, 8044, 9420, 10055, 12066, 20110, 24132, 30165, 40220, 60330, 120660, 315727, 631454, 947181, 1262908, 1578635, 1894362, 3157270, 3788724, 4735905, 6314540, 9471810, 18943620]

約数ペア:

[(1, 18943620), (2, 9471810), (3, 6314540), (4, 4735905), (5, 3788724), (6, 3157270), (10, 1894362), (12, 1578635), (15, 1262908), (20, 947181), (30, 631454), (60, 315727), (157, 120660), (314, 60330), (471, 40220), (628, 30165), (785, 24132), (942, 20110), (1570, 12066), (1884, 10055), (2011, 9420), (2355, 8044), (3140, 6033), (4022, 4710)]