19902060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110567}}^1$

素因数の和:110582

約数の個数: 36

約数和(自身を含む): 60370128

約数和(自身を除く): 40468068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110567, 221134, 331701, 442268, 552835, 663402, 995103, 1105670, 1326804, 1658505, 1990206, 2211340, 3317010, 3980412, 4975515, 6634020, 9951030, 19902060]

約数ペア:

[(1, 19902060), (2, 9951030), (3, 6634020), (4, 4975515), (5, 3980412), (6, 3317010), (9, 2211340), (10, 1990206), (12, 1658505), (15, 1326804), (18, 1105670), (20, 995103), (30, 663402), (36, 552835), (45, 442268), (60, 331701), (90, 221134), (180, 110567)]