8018000

素因数分解:

$2^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:253

約数の個数: 80

約数和(自身を含む): 20504640

約数和(自身を除く): 12486640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 125, 152, 190, 200, 211, 250, 304, 380, 400, 422, 475, 500, 760, 844, 950, 1000, 1055, 1520, 1688, 1900, 2000, 2110, 2375, 3376, 3800, 4009, 4220, 4750, 5275, 7600, 8018, 8440, 9500, 10550, 16036, 16880, 19000, 20045, 21100, 26375, 32072, 38000, 40090, 42200, 52750, 64144, 80180, 84400, 100225, 105500, 160360, 200450, 211000, 320720, 400900, 422000, 501125, 801800, 1002250, 1603600, 2004500, 4009000, 8018000]

約数ペア:

[(1, 8018000), (2, 4009000), (4, 2004500), (5, 1603600), (8, 1002250), (10, 801800), (16, 501125), (19, 422000), (20, 400900), (25, 320720), (38, 211000), (40, 200450), (50, 160360), (76, 105500), (80, 100225), (95, 84400), (100, 80180), (125, 64144), (152, 52750), (190, 42200), (200, 40090), (211, 38000), (250, 32072), (304, 26375), (380, 21100), (400, 20045), (422, 19000), (475, 16880), (500, 16036), (760, 10550), (844, 9500), (950, 8440), (1000, 8018), (1055, 7600), (1520, 5275), (1688, 4750), (1900, 4220), (2000, 4009), (2110, 3800), (2375, 3376)]