20089600

素因数分解:

$2^8\times 5^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 108

約数和(自身を含む): 51578296

約数和(自身を除く): 31488696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 73, 80, 86, 100, 128, 146, 160, 172, 200, 215, 256, 292, 320, 344, 365, 400, 430, 584, 640, 688, 730, 800, 860, 1075, 1168, 1280, 1376, 1460, 1600, 1720, 1825, 2150, 2336, 2752, 2920, 3139, 3200, 3440, 3650, 4300, 4672, 5504, 5840, 6278, 6400, 6880, 7300, 8600, 9344, 11008, 11680, 12556, 13760, 14600, 15695, 17200, 18688, 23360, 25112, 27520, 29200, 31390, 34400, 46720, 50224, 55040, 58400, 62780, 68800, 78475, 93440, 100448, 116800, 125560, 137600, 156950, 200896, 233600, 251120, 275200, 313900, 401792, 467200, 502240, 627800, 803584, 1004480, 1255600, 2008960, 2511200, 4017920, 5022400, 10044800, 20089600]

約数ペア:

[(1, 20089600), (2, 10044800), (4, 5022400), (5, 4017920), (8, 2511200), (10, 2008960), (16, 1255600), (20, 1004480), (25, 803584), (32, 627800), (40, 502240), (43, 467200), (50, 401792), (64, 313900), (73, 275200), (80, 251120), (86, 233600), (100, 200896), (128, 156950), (146, 137600), (160, 125560), (172, 116800), (200, 100448), (215, 93440), (256, 78475), (292, 68800), (320, 62780), (344, 58400), (365, 55040), (400, 50224), (430, 46720), (584, 34400), (640, 31390), (688, 29200), (730, 27520), (800, 25112), (860, 23360), (1075, 18688), (1168, 17200), (1280, 15695), (1376, 14600), (1460, 13760), (1600, 12556), (1720, 11680), (1825, 11008), (2150, 9344), (2336, 8600), (2752, 7300), (2920, 6880), (3139, 6400), (3200, 6278), (3440, 5840), (3650, 5504), (4300, 4672)]