20644020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114689}}^1$

素因数の和:114704

約数の個数: 36

約数和(自身を含む): 62620740

約数和(自身を除く): 41976720

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114689, 229378, 344067, 458756, 573445, 688134, 1032201, 1146890, 1376268, 1720335, 2064402, 2293780, 3440670, 4128804, 5161005, 6881340, 10322010, 20644020]

約数ペア:

[(1, 20644020), (2, 10322010), (3, 6881340), (4, 5161005), (5, 4128804), (6, 3440670), (9, 2293780), (10, 2064402), (12, 1720335), (15, 1376268), (18, 1146890), (20, 1032201), (30, 688134), (36, 573445), (45, 458756), (60, 344067), (90, 229378), (180, 114689)]