25070720

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{911}}^1$

素因数の和:973

約数の個数: 64

約数和(自身を含む): 61395840

約数和(自身を除く): 36325120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 860, 911, 1376, 1720, 1822, 2752, 3440, 3644, 4555, 5504, 6880, 7288, 9110, 13760, 14576, 18220, 27520, 29152, 36440, 39173, 58304, 72880, 78346, 116608, 145760, 156692, 195865, 291520, 313384, 391730, 583040, 626768, 783460, 1253536, 1566920, 2507072, 3133840, 5014144, 6267680, 12535360, 25070720]

約数ペア:

[(1, 25070720), (2, 12535360), (4, 6267680), (5, 5014144), (8, 3133840), (10, 2507072), (16, 1566920), (20, 1253536), (32, 783460), (40, 626768), (43, 583040), (64, 391730), (80, 313384), (86, 291520), (128, 195865), (160, 156692), (172, 145760), (215, 116608), (320, 78346), (344, 72880), (430, 58304), (640, 39173), (688, 36440), (860, 29152), (911, 27520), (1376, 18220), (1720, 14576), (1822, 13760), (2752, 9110), (3440, 7288), (3644, 6880), (4555, 5504)]