15640740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2803}}^1$

素因数の和:2849

約数の個数: 72

約数和(自身を含む): 48991488

約数和(自身を除く): 33350748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 2803, 5580, 5606, 8409, 11212, 14015, 16818, 25227, 28030, 33636, 42045, 50454, 56060, 84090, 86893, 100908, 126135, 168180, 173786, 252270, 260679, 347572, 434465, 504540, 521358, 782037, 868930, 1042716, 1303395, 1564074, 1737860, 2606790, 3128148, 3910185, 5213580, 7820370, 15640740]

約数ペア:

[(1, 15640740), (2, 7820370), (3, 5213580), (4, 3910185), (5, 3128148), (6, 2606790), (9, 1737860), (10, 1564074), (12, 1303395), (15, 1042716), (18, 868930), (20, 782037), (30, 521358), (31, 504540), (36, 434465), (45, 347572), (60, 260679), (62, 252270), (90, 173786), (93, 168180), (124, 126135), (155, 100908), (180, 86893), (186, 84090), (279, 56060), (310, 50454), (372, 42045), (465, 33636), (558, 28030), (620, 25227), (930, 16818), (1116, 14015), (1395, 11212), (1860, 8409), (2790, 5606), (2803, 5580)]