18816800

素因数分解:

$2^5\times 5^2\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:610

約数の個数: 72

約数和(自身を含む): 47090736

約数和(自身を除く): 28273936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 80, 86, 100, 160, 172, 200, 215, 344, 400, 430, 547, 688, 800, 860, 1075, 1094, 1376, 1720, 2150, 2188, 2735, 3440, 4300, 4376, 5470, 6880, 8600, 8752, 10940, 13675, 17200, 17504, 21880, 23521, 27350, 34400, 43760, 47042, 54700, 87520, 94084, 109400, 117605, 188168, 218800, 235210, 376336, 437600, 470420, 588025, 752672, 940840, 1176050, 1881680, 2352100, 3763360, 4704200, 9408400, 18816800]

約数ペア:

[(1, 18816800), (2, 9408400), (4, 4704200), (5, 3763360), (8, 2352100), (10, 1881680), (16, 1176050), (20, 940840), (25, 752672), (32, 588025), (40, 470420), (43, 437600), (50, 376336), (80, 235210), (86, 218800), (100, 188168), (160, 117605), (172, 109400), (200, 94084), (215, 87520), (344, 54700), (400, 47042), (430, 43760), (547, 34400), (688, 27350), (800, 23521), (860, 21880), (1075, 17504), (1094, 17200), (1376, 13675), (1720, 10940), (2150, 8752), (2188, 8600), (2735, 6880), (3440, 5470), (4300, 4376)]