19975860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110977}}^1$

素因数の和:110992

約数の個数: 36

約数和(自身を含む): 60593988

約数和(自身を除く): 40618128

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110977, 221954, 332931, 443908, 554885, 665862, 998793, 1109770, 1331724, 1664655, 1997586, 2219540, 3329310, 3995172, 4993965, 6658620, 9987930, 19975860]

約数ペア:

[(1, 19975860), (2, 9987930), (3, 6658620), (4, 4993965), (5, 3995172), (6, 3329310), (9, 2219540), (10, 1997586), (12, 1664655), (15, 1331724), (18, 1109770), (20, 998793), (30, 665862), (36, 554885), (45, 443908), (60, 332931), (90, 221954), (180, 110977)]