2398220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{991}}^1$

素因数の和:1022

約数の個数: 36

約数和(自身を含む): 5541312

約数和(自身を除く): 3143092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 991, 1210, 1982, 2420, 3964, 4955, 9910, 10901, 19820, 21802, 43604, 54505, 109010, 119911, 218020, 239822, 479644, 599555, 1199110, 2398220]

約数ペア:

[(1, 2398220), (2, 1199110), (4, 599555), (5, 479644), (10, 239822), (11, 218020), (20, 119911), (22, 109010), (44, 54505), (55, 43604), (110, 21802), (121, 19820), (220, 10901), (242, 9910), (484, 4955), (605, 3964), (991, 2420), (1210, 1982)]