20218660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1$

素因数の和:737

約数の個数: 96

約数和(自身を含む): 55802880

約数和(自身を除く): 35584220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 55, 70, 76, 77, 95, 110, 133, 140, 154, 190, 209, 220, 266, 308, 380, 385, 418, 532, 665, 691, 770, 836, 1045, 1330, 1382, 1463, 1540, 2090, 2660, 2764, 2926, 3455, 4180, 4837, 5852, 6910, 7315, 7601, 9674, 13129, 13820, 14630, 15202, 19348, 24185, 26258, 29260, 30404, 38005, 48370, 52516, 53207, 65645, 76010, 91903, 96740, 106414, 131290, 144419, 152020, 183806, 212828, 262580, 266035, 288838, 367612, 459515, 532070, 577676, 722095, 919030, 1010933, 1064140, 1444190, 1838060, 2021866, 2888380, 4043732, 5054665, 10109330, 20218660]

約数ペア:

[(1, 20218660), (2, 10109330), (4, 5054665), (5, 4043732), (7, 2888380), (10, 2021866), (11, 1838060), (14, 1444190), (19, 1064140), (20, 1010933), (22, 919030), (28, 722095), (35, 577676), (38, 532070), (44, 459515), (55, 367612), (70, 288838), (76, 266035), (77, 262580), (95, 212828), (110, 183806), (133, 152020), (140, 144419), (154, 131290), (190, 106414), (209, 96740), (220, 91903), (266, 76010), (308, 65645), (380, 53207), (385, 52516), (418, 48370), (532, 38005), (665, 30404), (691, 29260), (770, 26258), (836, 24185), (1045, 19348), (1330, 15202), (1382, 14630), (1463, 13820), (1540, 13129), (2090, 9674), (2660, 7601), (2764, 7315), (2926, 6910), (3455, 5852), (4180, 4837)]