38641520

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:342

約数の個数: 80

約数和(自身を含む): 94279680

約数和(自身を除く): 55638160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 47, 80, 86, 94, 172, 188, 215, 235, 239, 344, 376, 430, 470, 478, 688, 752, 860, 940, 956, 1195, 1720, 1880, 1912, 2021, 2390, 3440, 3760, 3824, 4042, 4780, 8084, 9560, 10105, 10277, 11233, 16168, 19120, 20210, 20554, 22466, 32336, 40420, 41108, 44932, 51385, 56165, 80840, 82216, 89864, 102770, 112330, 161680, 164432, 179728, 205540, 224660, 411080, 449320, 483019, 822160, 898640, 966038, 1932076, 2415095, 3864152, 4830190, 7728304, 9660380, 19320760, 38641520]

約数ペア:

[(1, 38641520), (2, 19320760), (4, 9660380), (5, 7728304), (8, 4830190), (10, 3864152), (16, 2415095), (20, 1932076), (40, 966038), (43, 898640), (47, 822160), (80, 483019), (86, 449320), (94, 411080), (172, 224660), (188, 205540), (215, 179728), (235, 164432), (239, 161680), (344, 112330), (376, 102770), (430, 89864), (470, 82216), (478, 80840), (688, 56165), (752, 51385), (860, 44932), (940, 41108), (956, 40420), (1195, 32336), (1720, 22466), (1880, 20554), (1912, 20210), (2021, 19120), (2390, 16168), (3440, 11233), (3760, 10277), (3824, 10105), (4042, 9560), (4780, 8084)]