20907260

素因数分解:

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

素因数の和:191

約数の個数: 72

約数和(自身を含む): 50044176

約数和(自身を除く): 29136916

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, 841, 1130, 1243, 1276, 1595, 1682, 2260, 2486, 3190, 3277, 3364, 4205, 4972, 6215, 6380, 6554, 8410, 9251, 12430, 13108, 16385, 16820, 18502, 24860, 32770, 36047, 37004, 46255, 65540, 72094, 92510, 95033, 144188, 180235, 185020, 190066, 360470, 380132, 475165, 720940, 950330, 1045363, 1900660, 2090726, 4181452, 5226815, 10453630, 20907260]

約数ペア:

[(1, 20907260), (2, 10453630), (4, 5226815), (5, 4181452), (10, 2090726), (11, 1900660), (20, 1045363), (22, 950330), (29, 720940), (44, 475165), (55, 380132), (58, 360470), (110, 190066), (113, 185020), (116, 180235), (145, 144188), (220, 95033), (226, 92510), (290, 72094), (319, 65540), (452, 46255), (565, 37004), (580, 36047), (638, 32770), (841, 24860), (1130, 18502), (1243, 16820), (1276, 16385), (1595, 13108), (1682, 12430), (2260, 9251), (2486, 8410), (3190, 6554), (3277, 6380), (3364, 6215), (4205, 4972)]