990147400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{450067}}^1$

素因数の和:450094

約数の個数: 48

約数和(自身を含む): 2511379440

約数和(自身を除く): 1521232040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 450067, 900134, 1800268, 2250335, 3600536, 4500670, 4950737, 9001340, 9901474, 11251675, 18002680, 19802948, 22503350, 24753685, 39605896, 45006700, 49507370, 90013400, 99014740, 123768425, 198029480, 247536850, 495073700, 990147400]

約数ペア:

[(1, 990147400), (2, 495073700), (4, 247536850), (5, 198029480), (8, 123768425), (10, 99014740), (11, 90013400), (20, 49507370), (22, 45006700), (25, 39605896), (40, 24753685), (44, 22503350), (50, 19802948), (55, 18002680), (88, 11251675), (100, 9901474), (110, 9001340), (200, 4950737), (220, 4500670), (275, 3600536), (440, 2250335), (550, 1800268), (1100, 900134), (2200, 450067)]