8440000

素因数分解:

$2^6\times 5^4\times {\mathrm{211}}^1$

素因数の和:243

約数の個数: 70

約数和(自身を含む): 21027644

約数和(自身を除く): 12587644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 211, 250, 320, 400, 422, 500, 625, 800, 844, 1000, 1055, 1250, 1600, 1688, 2000, 2110, 2500, 3376, 4000, 4220, 5000, 5275, 6752, 8000, 8440, 10000, 10550, 13504, 16880, 20000, 21100, 26375, 33760, 40000, 42200, 52750, 67520, 84400, 105500, 131875, 168800, 211000, 263750, 337600, 422000, 527500, 844000, 1055000, 1688000, 2110000, 4220000, 8440000]

約数ペア:

[(1, 8440000), (2, 4220000), (4, 2110000), (5, 1688000), (8, 1055000), (10, 844000), (16, 527500), (20, 422000), (25, 337600), (32, 263750), (40, 211000), (50, 168800), (64, 131875), (80, 105500), (100, 84400), (125, 67520), (160, 52750), (200, 42200), (211, 40000), (250, 33760), (320, 26375), (400, 21100), (422, 20000), (500, 16880), (625, 13504), (800, 10550), (844, 10000), (1000, 8440), (1055, 8000), (1250, 6752), (1600, 5275), (1688, 5000), (2000, 4220), (2110, 4000), (2500, 3376)]