18180900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{20201}}^1$

素因数の和:20221

約数の個数: 54

約数和(自身を含む): 56989842

約数和(自身を除く): 38808942

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 20201, 40402, 60603, 80804, 101005, 121206, 181809, 202010, 242412, 303015, 363618, 404020, 505025, 606030, 727236, 909045, 1010050, 1212060, 1515075, 1818090, 2020100, 3030150, 3636180, 4545225, 6060300, 9090450, 18180900]

約数ペア:

[(1, 18180900), (2, 9090450), (3, 6060300), (4, 4545225), (5, 3636180), (6, 3030150), (9, 2020100), (10, 1818090), (12, 1515075), (15, 1212060), (18, 1010050), (20, 909045), (25, 727236), (30, 606030), (36, 505025), (45, 404020), (50, 363618), (60, 303015), (75, 242412), (90, 202010), (100, 181809), (150, 121206), (180, 101005), (225, 80804), (300, 60603), (450, 40402), (900, 20201)]