19870740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1093}}^1$

素因数の和:1209

約数の個数: 72

約数和(自身を含む): 60927048

約数和(自身を除く): 41056308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1093, 1212, 1515, 1818, 2020, 2186, 3030, 3279, 3636, 4372, 4545, 5465, 6060, 6558, 9090, 9837, 10930, 13116, 16395, 18180, 19674, 21860, 32790, 39348, 49185, 65580, 98370, 110393, 196740, 220786, 331179, 441572, 551965, 662358, 993537, 1103930, 1324716, 1655895, 1987074, 2207860, 3311790, 3974148, 4967685, 6623580, 9935370, 19870740]

約数ペア:

[(1, 19870740), (2, 9935370), (3, 6623580), (4, 4967685), (5, 3974148), (6, 3311790), (9, 2207860), (10, 1987074), (12, 1655895), (15, 1324716), (18, 1103930), (20, 993537), (30, 662358), (36, 551965), (45, 441572), (60, 331179), (90, 220786), (101, 196740), (180, 110393), (202, 98370), (303, 65580), (404, 49185), (505, 39348), (606, 32790), (909, 21860), (1010, 19674), (1093, 18180), (1212, 16395), (1515, 13116), (1818, 10930), (2020, 9837), (2186, 9090), (3030, 6558), (3279, 6060), (3636, 5465), (4372, 4545)]