28093140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1609}}^1$

素因数の和:1721

約数の個数: 72

約数和(自身を含む): 86147880

約数和(自身を除く): 58054740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1164, 1455, 1609, 1746, 1940, 2910, 3218, 3492, 4365, 4827, 5820, 6436, 8045, 8730, 9654, 14481, 16090, 17460, 19308, 24135, 28962, 32180, 48270, 57924, 72405, 96540, 144810, 156073, 289620, 312146, 468219, 624292, 780365, 936438, 1404657, 1560730, 1872876, 2341095, 2809314, 3121460, 4682190, 5618628, 7023285, 9364380, 14046570, 28093140]

約数ペア:

[(1, 28093140), (2, 14046570), (3, 9364380), (4, 7023285), (5, 5618628), (6, 4682190), (9, 3121460), (10, 2809314), (12, 2341095), (15, 1872876), (18, 1560730), (20, 1404657), (30, 936438), (36, 780365), (45, 624292), (60, 468219), (90, 312146), (97, 289620), (180, 156073), (194, 144810), (291, 96540), (388, 72405), (485, 57924), (582, 48270), (873, 32180), (970, 28962), (1164, 24135), (1455, 19308), (1609, 17460), (1746, 16090), (1940, 14481), (2910, 9654), (3218, 8730), (3492, 8045), (4365, 6436), (4827, 5820)]