4009000

素因数分解:

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

素因数の和:251

約数の個数: 64

約数和(自身を含む): 9921600

約数和(自身を除く): 5912600

約数列:

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

約数ペア:

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