18449000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{971}}^1$

素因数の和:1011

約数の個数: 64

約数和(自身を含む): 45489600

約数和(自身を除く): 27040600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 760, 950, 971, 1000, 1900, 1942, 2375, 3800, 3884, 4750, 4855, 7768, 9500, 9710, 18449, 19000, 19420, 24275, 36898, 38840, 48550, 73796, 92245, 97100, 121375, 147592, 184490, 194200, 242750, 368980, 461225, 485500, 737960, 922450, 971000, 1844900, 2306125, 3689800, 4612250, 9224500, 18449000]

約数ペア:

[(1, 18449000), (2, 9224500), (4, 4612250), (5, 3689800), (8, 2306125), (10, 1844900), (19, 971000), (20, 922450), (25, 737960), (38, 485500), (40, 461225), (50, 368980), (76, 242750), (95, 194200), (100, 184490), (125, 147592), (152, 121375), (190, 97100), (200, 92245), (250, 73796), (380, 48550), (475, 38840), (500, 36898), (760, 24275), (950, 19420), (971, 19000), (1000, 18449), (1900, 9710), (1942, 9500), (2375, 7768), (3800, 4855), (3884, 4750)]