18847000

素因数分解:

$2^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:469

約数の個数: 64

約数和(自身を含む): 45152640

約数和(自身を除く): 26305640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 125, 188, 200, 235, 250, 376, 401, 470, 500, 802, 940, 1000, 1175, 1604, 1880, 2005, 2350, 3208, 4010, 4700, 5875, 8020, 9400, 10025, 11750, 16040, 18847, 20050, 23500, 37694, 40100, 47000, 50125, 75388, 80200, 94235, 100250, 150776, 188470, 200500, 376940, 401000, 471175, 753880, 942350, 1884700, 2355875, 3769400, 4711750, 9423500, 18847000]

約数ペア:

[(1, 18847000), (2, 9423500), (4, 4711750), (5, 3769400), (8, 2355875), (10, 1884700), (20, 942350), (25, 753880), (40, 471175), (47, 401000), (50, 376940), (94, 200500), (100, 188470), (125, 150776), (188, 100250), (200, 94235), (235, 80200), (250, 75388), (376, 50125), (401, 47000), (470, 40100), (500, 37694), (802, 23500), (940, 20050), (1000, 18847), (1175, 16040), (1604, 11750), (1880, 10025), (2005, 9400), (2350, 8020), (3208, 5875), (4010, 4700)]