20915200

素因数分解:

$2^{10}\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:92

約数の個数: 132

約数和(自身を含む): 55842160

約数和(自身を除く): 34926960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 43, 50, 64, 76, 80, 86, 95, 100, 128, 152, 160, 172, 190, 200, 215, 256, 304, 320, 344, 380, 400, 430, 475, 512, 608, 640, 688, 760, 800, 817, 860, 950, 1024, 1075, 1216, 1280, 1376, 1520, 1600, 1634, 1720, 1900, 2150, 2432, 2560, 2752, 3040, 3200, 3268, 3440, 3800, 4085, 4300, 4864, 5120, 5504, 6080, 6400, 6536, 6880, 7600, 8170, 8600, 9728, 11008, 12160, 12800, 13072, 13760, 15200, 16340, 17200, 19456, 20425, 22016, 24320, 25600, 26144, 27520, 30400, 32680, 34400, 40850, 44032, 48640, 52288, 55040, 60800, 65360, 68800, 81700, 97280, 104576, 110080, 121600, 130720, 137600, 163400, 209152, 220160, 243200, 261440, 275200, 326800, 418304, 486400, 522880, 550400, 653600, 836608, 1045760, 1100800, 1307200, 2091520, 2614400, 4183040, 5228800, 10457600, 20915200]

約数ペア:

[(1, 20915200), (2, 10457600), (4, 5228800), (5, 4183040), (8, 2614400), (10, 2091520), (16, 1307200), (19, 1100800), (20, 1045760), (25, 836608), (32, 653600), (38, 550400), (40, 522880), (43, 486400), (50, 418304), (64, 326800), (76, 275200), (80, 261440), (86, 243200), (95, 220160), (100, 209152), (128, 163400), (152, 137600), (160, 130720), (172, 121600), (190, 110080), (200, 104576), (215, 97280), (256, 81700), (304, 68800), (320, 65360), (344, 60800), (380, 55040), (400, 52288), (430, 48640), (475, 44032), (512, 40850), (608, 34400), (640, 32680), (688, 30400), (760, 27520), (800, 26144), (817, 25600), (860, 24320), (950, 22016), (1024, 20425), (1075, 19456), (1216, 17200), (1280, 16340), (1376, 15200), (1520, 13760), (1600, 13072), (1634, 12800), (1720, 12160), (1900, 11008), (2150, 9728), (2432, 8600), (2560, 8170), (2752, 7600), (3040, 6880), (3200, 6536), (3268, 6400), (3440, 6080), (3800, 5504), (4085, 5120), (4300, 4864)]