90805220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{2161}}^1$

素因数の和:2372

約数の個数: 48

約数和(自身を含む): 209212416

約数和(自身を除く): 118407196

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 764, 955, 1910, 2101, 2161, 3820, 4202, 4322, 8404, 8644, 10505, 10805, 21010, 21610, 23771, 42020, 43220, 47542, 95084, 118855, 237710, 412751, 475420, 825502, 1651004, 2063755, 4127510, 4540261, 8255020, 9080522, 18161044, 22701305, 45402610, 90805220]

約数ペア:

[(1, 90805220), (2, 45402610), (4, 22701305), (5, 18161044), (10, 9080522), (11, 8255020), (20, 4540261), (22, 4127510), (44, 2063755), (55, 1651004), (110, 825502), (191, 475420), (220, 412751), (382, 237710), (764, 118855), (955, 95084), (1910, 47542), (2101, 43220), (2161, 42020), (3820, 23771), (4202, 21610), (4322, 21010), (8404, 10805), (8644, 10505)]