30821540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{35839}}^1$

素因数の和:35891

約数の個数: 24

約数和(自身を含む): 66232320

約数和(自身を除く): 35410780

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 35839, 71678, 143356, 179195, 358390, 716780, 1541077, 3082154, 6164308, 7705385, 15410770, 30821540]

約数ペア:

[(1, 30821540), (2, 15410770), (4, 7705385), (5, 6164308), (10, 3082154), (20, 1541077), (43, 716780), (86, 358390), (172, 179195), (215, 143356), (430, 71678), (860, 35839)]