90900

素因数分解:

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

素因数の和:121

約数の個数: 54

約数和(自身を含む): 287742

約数和(自身を除く): 196842

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 101, 150, 180, 202, 225, 300, 303, 404, 450, 505, 606, 900, 909, 1010, 1212, 1515, 1818, 2020, 2525, 3030, 3636, 4545, 5050, 6060, 7575, 9090, 10100, 15150, 18180, 22725, 30300, 45450, 90900]

約数ペア:

[(1, 90900), (2, 45450), (3, 30300), (4, 22725), (5, 18180), (6, 15150), (9, 10100), (10, 9090), (12, 7575), (15, 6060), (18, 5050), (20, 4545), (25, 3636), (30, 3030), (36, 2525), (45, 2020), (50, 1818), (60, 1515), (75, 1212), (90, 1010), (100, 909), (101, 900), (150, 606), (180, 505), (202, 450), (225, 404), (300, 303)]