18737800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4931}}^1$

素因数の和:4966

約数の個数: 48

約数和(自身を含む): 45867600

約数和(自身を除く): 27129800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 4931, 9862, 19724, 24655, 39448, 49310, 93689, 98620, 123275, 187378, 197240, 246550, 374756, 468445, 493100, 749512, 936890, 986200, 1873780, 2342225, 3747560, 4684450, 9368900, 18737800]

約数ペア:

[(1, 18737800), (2, 9368900), (4, 4684450), (5, 3747560), (8, 2342225), (10, 1873780), (19, 986200), (20, 936890), (25, 749512), (38, 493100), (40, 468445), (50, 374756), (76, 246550), (95, 197240), (100, 187378), (152, 123275), (190, 98620), (200, 93689), (380, 49310), (475, 39448), (760, 24655), (950, 19724), (1900, 9862), (3800, 4931)]