89100990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90001}}^1$

素因数の和:90025

約数の個数: 48

約数和(自身を含む): 252725616

約数和(自身を除く): 163624626

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 90001, 180002, 270003, 450005, 540006, 810009, 900010, 990011, 1350015, 1620018, 1980022, 2700030, 2970033, 4050045, 4950055, 5940066, 8100090, 8910099, 9900110, 14850165, 17820198, 29700330, 44550495, 89100990]

約数ペア:

[(1, 89100990), (2, 44550495), (3, 29700330), (5, 17820198), (6, 14850165), (9, 9900110), (10, 8910099), (11, 8100090), (15, 5940066), (18, 4950055), (22, 4050045), (30, 2970033), (33, 2700030), (45, 1980022), (55, 1620018), (66, 1350015), (90, 990011), (99, 900010), (110, 810009), (165, 540006), (198, 450005), (330, 270003), (495, 180002), (990, 90001)]