20523040

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:234

約数の個数: 96

約数和(自身を含む): 52557120

約数和(自身を除く): 32034080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 43, 76, 80, 86, 95, 152, 157, 160, 172, 190, 215, 304, 314, 344, 380, 430, 608, 628, 688, 760, 785, 817, 860, 1256, 1376, 1520, 1570, 1634, 1720, 2512, 2983, 3040, 3140, 3268, 3440, 4085, 5024, 5966, 6280, 6536, 6751, 6880, 8170, 11932, 12560, 13072, 13502, 14915, 16340, 23864, 25120, 26144, 27004, 29830, 32680, 33755, 47728, 54008, 59660, 65360, 67510, 95456, 108016, 119320, 128269, 130720, 135020, 216032, 238640, 256538, 270040, 477280, 513076, 540080, 641345, 1026152, 1080160, 1282690, 2052304, 2565380, 4104608, 5130760, 10261520, 20523040]

約数ペア:

[(1, 20523040), (2, 10261520), (4, 5130760), (5, 4104608), (8, 2565380), (10, 2052304), (16, 1282690), (19, 1080160), (20, 1026152), (32, 641345), (38, 540080), (40, 513076), (43, 477280), (76, 270040), (80, 256538), (86, 238640), (95, 216032), (152, 135020), (157, 130720), (160, 128269), (172, 119320), (190, 108016), (215, 95456), (304, 67510), (314, 65360), (344, 59660), (380, 54008), (430, 47728), (608, 33755), (628, 32680), (688, 29830), (760, 27004), (785, 26144), (817, 25120), (860, 23864), (1256, 16340), (1376, 14915), (1520, 13502), (1570, 13072), (1634, 12560), (1720, 11932), (2512, 8170), (2983, 6880), (3040, 6751), (3140, 6536), (3268, 6280), (3440, 5966), (4085, 5024)]