20874720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:452

約数の個数: 96

約数和(自身を含む): 66413088

約数和(自身を除く): 45538368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 157, 160, 240, 277, 314, 471, 480, 554, 628, 785, 831, 942, 1108, 1256, 1385, 1570, 1662, 1884, 2216, 2355, 2512, 2770, 3140, 3324, 3768, 4155, 4432, 4710, 5024, 5540, 6280, 6648, 7536, 8310, 8864, 9420, 11080, 12560, 13296, 15072, 16620, 18840, 22160, 25120, 26592, 33240, 37680, 43489, 44320, 66480, 75360, 86978, 130467, 132960, 173956, 217445, 260934, 347912, 434890, 521868, 652335, 695824, 869780, 1043736, 1304670, 1391648, 1739560, 2087472, 2609340, 3479120, 4174944, 5218680, 6958240, 10437360, 20874720]

約数ペア:

[(1, 20874720), (2, 10437360), (3, 6958240), (4, 5218680), (5, 4174944), (6, 3479120), (8, 2609340), (10, 2087472), (12, 1739560), (15, 1391648), (16, 1304670), (20, 1043736), (24, 869780), (30, 695824), (32, 652335), (40, 521868), (48, 434890), (60, 347912), (80, 260934), (96, 217445), (120, 173956), (157, 132960), (160, 130467), (240, 86978), (277, 75360), (314, 66480), (471, 44320), (480, 43489), (554, 37680), (628, 33240), (785, 26592), (831, 25120), (942, 22160), (1108, 18840), (1256, 16620), (1385, 15072), (1570, 13296), (1662, 12560), (1884, 11080), (2216, 9420), (2355, 8864), (2512, 8310), (2770, 7536), (3140, 6648), (3324, 6280), (3768, 5540), (4155, 5024), (4432, 4710)]