68198020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{28181}}^1$

素因数の和:28212

約数の個数: 36

約数和(自身を含む): 157424652

約数和(自身を除く): 89226632

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 28181, 56362, 112724, 140905, 281810, 309991, 563620, 619982, 1239964, 1549955, 3099910, 3409901, 6199820, 6819802, 13639604, 17049505, 34099010, 68198020]

約数ペア:

[(1, 68198020), (2, 34099010), (4, 17049505), (5, 13639604), (10, 6819802), (11, 6199820), (20, 3409901), (22, 3099910), (44, 1549955), (55, 1239964), (110, 619982), (121, 563620), (220, 309991), (242, 281810), (484, 140905), (605, 112724), (1210, 56362), (2420, 28181)]