100105420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{56239}}^1$

素因数の和:56337

約数の個数: 24

約数和(自身を含む): 212587200

約数和(自身を除く): 112481780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 56239, 112478, 224956, 281195, 562390, 1124780, 5005271, 10010542, 20021084, 25026355, 50052710, 100105420]

約数ペア:

[(1, 100105420), (2, 50052710), (4, 25026355), (5, 20021084), (10, 10010542), (20, 5005271), (89, 1124780), (178, 562390), (356, 281195), (445, 224956), (890, 112478), (1780, 56239)]