18157040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:510

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 28982800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 439, 440, 470, 517, 752, 878, 880, 940, 1034, 1756, 1880, 2068, 2195, 2585, 3512, 3760, 4136, 4390, 4829, 5170, 7024, 8272, 8780, 9658, 10340, 17560, 19316, 20633, 20680, 24145, 35120, 38632, 41266, 41360, 48290, 77264, 82532, 96580, 103165, 165064, 193160, 206330, 226963, 330128, 386320, 412660, 453926, 825320, 907852, 1134815, 1650640, 1815704, 2269630, 3631408, 4539260, 9078520, 18157040]

約数ペア:

[(1, 18157040), (2, 9078520), (4, 4539260), (5, 3631408), (8, 2269630), (10, 1815704), (11, 1650640), (16, 1134815), (20, 907852), (22, 825320), (40, 453926), (44, 412660), (47, 386320), (55, 330128), (80, 226963), (88, 206330), (94, 193160), (110, 165064), (176, 103165), (188, 96580), (220, 82532), (235, 77264), (376, 48290), (439, 41360), (440, 41266), (470, 38632), (517, 35120), (752, 24145), (878, 20680), (880, 20633), (940, 19316), (1034, 17560), (1756, 10340), (1880, 9658), (2068, 8780), (2195, 8272), (2585, 7024), (3512, 5170), (3760, 4829), (4136, 4390)]