77686740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2749}}^1$

素因数の和:2921

約数の個数: 72

約数和(自身を含む): 237237000

約数和(自身を除く): 159550260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1570, 1884, 2355, 2749, 2826, 3140, 4710, 5498, 5652, 7065, 8247, 9420, 10996, 13745, 14130, 16494, 24741, 27490, 28260, 32988, 41235, 49482, 54980, 82470, 98964, 123705, 164940, 247410, 431593, 494820, 863186, 1294779, 1726372, 2157965, 2589558, 3884337, 4315930, 5179116, 6473895, 7768674, 8631860, 12947790, 15537348, 19421685, 25895580, 38843370, 77686740]

約数ペア:

[(1, 77686740), (2, 38843370), (3, 25895580), (4, 19421685), (5, 15537348), (6, 12947790), (9, 8631860), (10, 7768674), (12, 6473895), (15, 5179116), (18, 4315930), (20, 3884337), (30, 2589558), (36, 2157965), (45, 1726372), (60, 1294779), (90, 863186), (157, 494820), (180, 431593), (314, 247410), (471, 164940), (628, 123705), (785, 98964), (942, 82470), (1413, 54980), (1570, 49482), (1884, 41235), (2355, 32988), (2749, 28260), (2826, 27490), (3140, 24741), (4710, 16494), (5498, 14130), (5652, 13745), (7065, 10996), (8247, 9420)]