45124780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 97161120

約数和(自身を除く): 52036340

約数列:

[1, 2, 4, 5, 10, 20, 89, 101, 178, 202, 251, 356, 404, 445, 502, 505, 890, 1004, 1010, 1255, 1780, 2020, 2510, 5020, 8989, 17978, 22339, 25351, 35956, 44678, 44945, 50702, 89356, 89890, 101404, 111695, 126755, 179780, 223390, 253510, 446780, 507020, 2256239, 4512478, 9024956, 11281195, 22562390, 45124780]

約数ペア:

[(1, 45124780), (2, 22562390), (4, 11281195), (5, 9024956), (10, 4512478), (20, 2256239), (89, 507020), (101, 446780), (178, 253510), (202, 223390), (251, 179780), (356, 126755), (404, 111695), (445, 101404), (502, 89890), (505, 89356), (890, 50702), (1004, 44945), (1010, 44678), (1255, 35956), (1780, 25351), (2020, 22339), (2510, 17978), (5020, 8989)]