39985840

素因数分解:

$2^4\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1259}}^1$

素因数の和:1669

約数の個数: 40

約数和(自身を含む): 93275280

約数和(自身を除く): 53289440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397, 794, 1259, 1588, 1985, 2518, 3176, 3970, 5036, 6295, 6352, 7940, 10072, 12590, 15880, 20144, 25180, 31760, 50360, 100720, 499823, 999646, 1999292, 2499115, 3998584, 4998230, 7997168, 9996460, 19992920, 39985840]

約数ペア:

[(1, 39985840), (2, 19992920), (4, 9996460), (5, 7997168), (8, 4998230), (10, 3998584), (16, 2499115), (20, 1999292), (40, 999646), (80, 499823), (397, 100720), (794, 50360), (1259, 31760), (1588, 25180), (1985, 20144), (2518, 15880), (3176, 12590), (3970, 10072), (5036, 7940), (6295, 6352)]