18902180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{569}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 43666560

約数和(自身を除く): 24764380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 151, 220, 302, 569, 604, 755, 1138, 1510, 1661, 2276, 2845, 3020, 3322, 5690, 6259, 6644, 8305, 11380, 12518, 16610, 25036, 31295, 33220, 62590, 85919, 125180, 171838, 343676, 429595, 859190, 945109, 1718380, 1890218, 3780436, 4725545, 9451090, 18902180]

約数ペア:

[(1, 18902180), (2, 9451090), (4, 4725545), (5, 3780436), (10, 1890218), (11, 1718380), (20, 945109), (22, 859190), (44, 429595), (55, 343676), (110, 171838), (151, 125180), (220, 85919), (302, 62590), (569, 33220), (604, 31295), (755, 25036), (1138, 16610), (1510, 12518), (1661, 11380), (2276, 8305), (2845, 6644), (3020, 6259), (3322, 5690)]