39420400

素因数分解:

$2^4\times 5^2\times {\mathrm{139}}^1\times {\mathrm{709}}^1$

素因数の和:866

約数の個数: 60

約数和(自身を含む): 95523400

約数和(自身を除く): 56103000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 139, 200, 278, 400, 556, 695, 709, 1112, 1390, 1418, 2224, 2780, 2836, 3475, 3545, 5560, 5672, 6950, 7090, 11120, 11344, 13900, 14180, 17725, 27800, 28360, 35450, 55600, 56720, 70900, 98551, 141800, 197102, 283600, 394204, 492755, 788408, 985510, 1576816, 1971020, 2463775, 3942040, 4927550, 7884080, 9855100, 19710200, 39420400]

約数ペア:

[(1, 39420400), (2, 19710200), (4, 9855100), (5, 7884080), (8, 4927550), (10, 3942040), (16, 2463775), (20, 1971020), (25, 1576816), (40, 985510), (50, 788408), (80, 492755), (100, 394204), (139, 283600), (200, 197102), (278, 141800), (400, 98551), (556, 70900), (695, 56720), (709, 55600), (1112, 35450), (1390, 28360), (1418, 27800), (2224, 17725), (2780, 14180), (2836, 13900), (3475, 11344), (3545, 11120), (5560, 7090), (5672, 6950)]