61556440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139901}}^1$

素因数の和:139923

約数の個数: 32

約数和(自身を含む): 151094160

約数和(自身を除く): 89537720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 139901, 279802, 559604, 699505, 1119208, 1399010, 1538911, 2798020, 3077822, 5596040, 6155644, 7694555, 12311288, 15389110, 30778220, 61556440]

約数ペア:

[(1, 61556440), (2, 30778220), (4, 15389110), (5, 12311288), (8, 7694555), (10, 6155644), (11, 5596040), (20, 3077822), (22, 2798020), (40, 1538911), (44, 1399010), (55, 1119208), (88, 699505), (110, 559604), (220, 279802), (440, 139901)]