89983960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{204509}}^1$

素因数の和:204531

約数の個数: 32

約数和(自身を含む): 220870800

約数和(自身を除く): 130886840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 204509, 409018, 818036, 1022545, 1636072, 2045090, 2249599, 4090180, 4499198, 8180360, 8998396, 11247995, 17996792, 22495990, 44991980, 89983960]

約数ペア:

[(1, 89983960), (2, 44991980), (4, 22495990), (5, 17996792), (8, 11247995), (10, 8998396), (11, 8180360), (20, 4499198), (22, 4090180), (40, 2249599), (44, 2045090), (55, 1636072), (88, 1022545), (110, 818036), (220, 409018), (440, 204509)]