28720080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{353}}^1$

素因数の和:485

約数の個数: 120

約数和(自身を含む): 97580808

約数和(自身を除く): 68860728

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, 113, 120, 144, 180, 226, 240, 339, 353, 360, 452, 565, 678, 706, 720, 904, 1017, 1059, 1130, 1356, 1412, 1695, 1765, 1808, 2034, 2118, 2260, 2712, 2824, 3177, 3390, 3530, 4068, 4236, 4520, 5085, 5295, 5424, 5648, 6354, 6780, 7060, 8136, 8472, 9040, 10170, 10590, 12708, 13560, 14120, 15885, 16272, 16944, 20340, 21180, 25416, 27120, 28240, 31770, 39889, 40680, 42360, 50832, 63540, 79778, 81360, 84720, 119667, 127080, 159556, 199445, 239334, 254160, 319112, 359001, 398890, 478668, 598335, 638224, 718002, 797780, 957336, 1196670, 1436004, 1595560, 1795005, 1914672, 2393340, 2872008, 3191120, 3590010, 4786680, 5744016, 7180020, 9573360, 14360040, 28720080]

約数ペア:

[(1, 28720080), (2, 14360040), (3, 9573360), (4, 7180020), (5, 5744016), (6, 4786680), (8, 3590010), (9, 3191120), (10, 2872008), (12, 2393340), (15, 1914672), (16, 1795005), (18, 1595560), (20, 1436004), (24, 1196670), (30, 957336), (36, 797780), (40, 718002), (45, 638224), (48, 598335), (60, 478668), (72, 398890), (80, 359001), (90, 319112), (113, 254160), (120, 239334), (144, 199445), (180, 159556), (226, 127080), (240, 119667), (339, 84720), (353, 81360), (360, 79778), (452, 63540), (565, 50832), (678, 42360), (706, 40680), (720, 39889), (904, 31770), (1017, 28240), (1059, 27120), (1130, 25416), (1356, 21180), (1412, 20340), (1695, 16944), (1765, 16272), (1808, 15885), (2034, 14120), (2118, 13560), (2260, 12708), (2712, 10590), (2824, 10170), (3177, 9040), (3390, 8472), (3530, 8136), (4068, 7060), (4236, 6780), (4520, 6354), (5085, 5648), (5295, 5424)]