31312080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:453

約数の個数: 120

約数和(自身を含む): 106208232

約数和(自身を除く): 74896152

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 157, 180, 240, 277, 314, 360, 471, 554, 628, 720, 785, 831, 942, 1108, 1256, 1385, 1413, 1570, 1662, 1884, 2216, 2355, 2493, 2512, 2770, 2826, 3140, 3324, 3768, 4155, 4432, 4710, 4986, 5540, 5652, 6280, 6648, 7065, 7536, 8310, 9420, 9972, 11080, 11304, 12465, 12560, 13296, 14130, 16620, 18840, 19944, 22160, 22608, 24930, 28260, 33240, 37680, 39888, 43489, 49860, 56520, 66480, 86978, 99720, 113040, 130467, 173956, 199440, 217445, 260934, 347912, 391401, 434890, 521868, 652335, 695824, 782802, 869780, 1043736, 1304670, 1565604, 1739560, 1957005, 2087472, 2609340, 3131208, 3479120, 3914010, 5218680, 6262416, 7828020, 10437360, 15656040, 31312080]

約数ペア:

[(1, 31312080), (2, 15656040), (3, 10437360), (4, 7828020), (5, 6262416), (6, 5218680), (8, 3914010), (9, 3479120), (10, 3131208), (12, 2609340), (15, 2087472), (16, 1957005), (18, 1739560), (20, 1565604), (24, 1304670), (30, 1043736), (36, 869780), (40, 782802), (45, 695824), (48, 652335), (60, 521868), (72, 434890), (80, 391401), (90, 347912), (120, 260934), (144, 217445), (157, 199440), (180, 173956), (240, 130467), (277, 113040), (314, 99720), (360, 86978), (471, 66480), (554, 56520), (628, 49860), (720, 43489), (785, 39888), (831, 37680), (942, 33240), (1108, 28260), (1256, 24930), (1385, 22608), (1413, 22160), (1570, 19944), (1662, 18840), (1884, 16620), (2216, 14130), (2355, 13296), (2493, 12560), (2512, 12465), (2770, 11304), (2826, 11080), (3140, 9972), (3324, 9420), (3768, 8310), (4155, 7536), (4432, 7065), (4710, 6648), (4986, 6280), (5540, 5652)]