18988000

素因数分解:

$2^5\times 5^3\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:173

約数の個数: 96

約数和(自身を含む): 48117888

約数和(自身を除く): 29129888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 80, 94, 100, 101, 125, 160, 188, 200, 202, 235, 250, 376, 400, 404, 470, 500, 505, 752, 800, 808, 940, 1000, 1010, 1175, 1504, 1616, 1880, 2000, 2020, 2350, 2525, 3232, 3760, 4000, 4040, 4700, 4747, 5050, 5875, 7520, 8080, 9400, 9494, 10100, 11750, 12625, 16160, 18800, 18988, 20200, 23500, 23735, 25250, 37600, 37976, 40400, 47000, 47470, 50500, 75952, 80800, 94000, 94940, 101000, 118675, 151904, 188000, 189880, 202000, 237350, 379760, 404000, 474700, 593375, 759520, 949400, 1186750, 1898800, 2373500, 3797600, 4747000, 9494000, 18988000]

約数ペア:

[(1, 18988000), (2, 9494000), (4, 4747000), (5, 3797600), (8, 2373500), (10, 1898800), (16, 1186750), (20, 949400), (25, 759520), (32, 593375), (40, 474700), (47, 404000), (50, 379760), (80, 237350), (94, 202000), (100, 189880), (101, 188000), (125, 151904), (160, 118675), (188, 101000), (200, 94940), (202, 94000), (235, 80800), (250, 75952), (376, 50500), (400, 47470), (404, 47000), (470, 40400), (500, 37976), (505, 37600), (752, 25250), (800, 23735), (808, 23500), (940, 20200), (1000, 18988), (1010, 18800), (1175, 16160), (1504, 12625), (1616, 11750), (1880, 10100), (2000, 9494), (2020, 9400), (2350, 8080), (2525, 7520), (3232, 5875), (3760, 5050), (4000, 4747), (4040, 4700)]