81466220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^2$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 194790960

約数和(自身を除く): 113324740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 113, 116, 145, 220, 226, 290, 319, 452, 565, 580, 638, 1130, 1243, 1276, 1595, 2260, 2486, 3190, 3277, 4972, 6215, 6380, 6554, 12430, 12769, 13108, 16385, 24860, 25538, 32770, 36047, 51076, 63845, 65540, 72094, 127690, 140459, 144188, 180235, 255380, 280918, 360470, 370301, 561836, 702295, 720940, 740602, 1404590, 1481204, 1851505, 2809180, 3703010, 4073311, 7406020, 8146622, 16293244, 20366555, 40733110, 81466220]

約数ペア:

[(1, 81466220), (2, 40733110), (4, 20366555), (5, 16293244), (10, 8146622), (11, 7406020), (20, 4073311), (22, 3703010), (29, 2809180), (44, 1851505), (55, 1481204), (58, 1404590), (110, 740602), (113, 720940), (116, 702295), (145, 561836), (220, 370301), (226, 360470), (290, 280918), (319, 255380), (452, 180235), (565, 144188), (580, 140459), (638, 127690), (1130, 72094), (1243, 65540), (1276, 63845), (1595, 51076), (2260, 36047), (2486, 32770), (3190, 25538), (3277, 24860), (4972, 16385), (6215, 13108), (6380, 12769), (6554, 12430)]