78877480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:455

約数の個数: 96

約数和(自身を含む): 200138400

約数和(自身を除く): 121260920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 121, 172, 215, 220, 242, 344, 379, 430, 440, 473, 484, 605, 758, 860, 946, 968, 1210, 1516, 1720, 1892, 1895, 2365, 2420, 3032, 3784, 3790, 4169, 4730, 4840, 5203, 7580, 8338, 9460, 10406, 15160, 16297, 16676, 18920, 20812, 20845, 26015, 32594, 33352, 41624, 41690, 45859, 52030, 65188, 81485, 83380, 91718, 104060, 130376, 162970, 166760, 179267, 183436, 208120, 229295, 325940, 358534, 366872, 458590, 651880, 717068, 896335, 917180, 1434136, 1792670, 1834360, 1971937, 3585340, 3943874, 7170680, 7887748, 9859685, 15775496, 19719370, 39438740, 78877480]

約数ペア:

[(1, 78877480), (2, 39438740), (4, 19719370), (5, 15775496), (8, 9859685), (10, 7887748), (11, 7170680), (20, 3943874), (22, 3585340), (40, 1971937), (43, 1834360), (44, 1792670), (55, 1434136), (86, 917180), (88, 896335), (110, 717068), (121, 651880), (172, 458590), (215, 366872), (220, 358534), (242, 325940), (344, 229295), (379, 208120), (430, 183436), (440, 179267), (473, 166760), (484, 162970), (605, 130376), (758, 104060), (860, 91718), (946, 83380), (968, 81485), (1210, 65188), (1516, 52030), (1720, 45859), (1892, 41690), (1895, 41624), (2365, 33352), (2420, 32594), (3032, 26015), (3784, 20845), (3790, 20812), (4169, 18920), (4730, 16676), (4840, 16297), (5203, 15160), (7580, 10406), (8338, 9460)]