18927780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1889}}^1$

素因数の和:2068

約数の個数: 48

約数和(自身を含む): 53343360

約数和(自身を除く): 34415580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 167, 334, 501, 668, 835, 1002, 1670, 1889, 2004, 2505, 3340, 3778, 5010, 5667, 7556, 9445, 10020, 11334, 18890, 22668, 28335, 37780, 56670, 113340, 315463, 630926, 946389, 1261852, 1577315, 1892778, 3154630, 3785556, 4731945, 6309260, 9463890, 18927780]

約数ペア:

[(1, 18927780), (2, 9463890), (3, 6309260), (4, 4731945), (5, 3785556), (6, 3154630), (10, 1892778), (12, 1577315), (15, 1261852), (20, 946389), (30, 630926), (60, 315463), (167, 113340), (334, 56670), (501, 37780), (668, 28335), (835, 22668), (1002, 18890), (1670, 11334), (1889, 10020), (2004, 9445), (2505, 7556), (3340, 5667), (3778, 5010)]