18151400

素因数分解:

$2^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1931}}^1$

素因数の和:1994

約数の個数: 48

約数和(自身を含む): 43122240

約数和(自身を除く): 24970840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 47, 50, 94, 100, 188, 200, 235, 376, 470, 940, 1175, 1880, 1931, 2350, 3862, 4700, 7724, 9400, 9655, 15448, 19310, 38620, 48275, 77240, 90757, 96550, 181514, 193100, 363028, 386200, 453785, 726056, 907570, 1815140, 2268925, 3630280, 4537850, 9075700, 18151400]

約数ペア:

[(1, 18151400), (2, 9075700), (4, 4537850), (5, 3630280), (8, 2268925), (10, 1815140), (20, 907570), (25, 726056), (40, 453785), (47, 386200), (50, 363028), (94, 193100), (100, 181514), (188, 96550), (200, 90757), (235, 77240), (376, 48275), (470, 38620), (940, 19310), (1175, 15448), (1880, 9655), (1931, 9400), (2350, 7724), (3862, 4700)]