90245320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{205103}}^1$

素因数の和:205125

約数の個数: 32

約数和(自身を含む): 221512320

約数和(自身を除く): 131267000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 205103, 410206, 820412, 1025515, 1640824, 2051030, 2256133, 4102060, 4512266, 8204120, 9024532, 11280665, 18049064, 22561330, 45122660, 90245320]

約数ペア:

[(1, 90245320), (2, 45122660), (4, 22561330), (5, 18049064), (8, 11280665), (10, 9024532), (11, 8204120), (20, 4512266), (22, 4102060), (40, 2256133), (44, 2051030), (55, 1640824), (88, 1025515), (110, 820412), (220, 410206), (440, 205103)]