81547140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15271}}^1$

素因数の和:15372

約数の個数: 48

約数和(自身を含む): 230912640

約数和(自身を除く): 149365500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 89, 178, 267, 356, 445, 534, 890, 1068, 1335, 1780, 2670, 5340, 15271, 30542, 45813, 61084, 76355, 91626, 152710, 183252, 229065, 305420, 458130, 916260, 1359119, 2718238, 4077357, 5436476, 6795595, 8154714, 13591190, 16309428, 20386785, 27182380, 40773570, 81547140]

約数ペア:

[(1, 81547140), (2, 40773570), (3, 27182380), (4, 20386785), (5, 16309428), (6, 13591190), (10, 8154714), (12, 6795595), (15, 5436476), (20, 4077357), (30, 2718238), (60, 1359119), (89, 916260), (178, 458130), (267, 305420), (356, 229065), (445, 183252), (534, 152710), (890, 91626), (1068, 76355), (1335, 61084), (1780, 45813), (2670, 30542), (5340, 15271)]