20377660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16703}}^1$

素因数の和:16773

約数の個数: 24

約数和(自身を含む): 43497216

約数和(自身を除く): 23119556

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16703, 33406, 66812, 83515, 167030, 334060, 1018883, 2037766, 4075532, 5094415, 10188830, 20377660]

約数ペア:

[(1, 20377660), (2, 10188830), (4, 5094415), (5, 4075532), (10, 2037766), (20, 1018883), (61, 334060), (122, 167030), (244, 83515), (305, 66812), (610, 33406), (1220, 16703)]