31357480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10181}}^1$

素因数の和:10210

約数の個数: 64

約数和(自身を含む): 87972480

約数和(自身を除く): 56615000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 10181, 20362, 40724, 50905, 71267, 81448, 101810, 111991, 142534, 203620, 223982, 285068, 356335, 407240, 447964, 559955, 570136, 712670, 783937, 895928, 1119910, 1425340, 1567874, 2239820, 2850680, 3135748, 3919685, 4479640, 6271496, 7839370, 15678740, 31357480]

約数ペア:

[(1, 31357480), (2, 15678740), (4, 7839370), (5, 6271496), (7, 4479640), (8, 3919685), (10, 3135748), (11, 2850680), (14, 2239820), (20, 1567874), (22, 1425340), (28, 1119910), (35, 895928), (40, 783937), (44, 712670), (55, 570136), (56, 559955), (70, 447964), (77, 407240), (88, 356335), (110, 285068), (140, 223982), (154, 203620), (220, 142534), (280, 111991), (308, 101810), (385, 81448), (440, 71267), (616, 50905), (770, 40724), (1540, 20362), (3080, 10181)]