82731560

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{487}}^1$

素因数の和:666

約数の個数: 64

約数和(自身を含む): 193950720

約数和(自身を除く): 111219160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 137, 155, 248, 274, 310, 487, 548, 620, 685, 974, 1096, 1240, 1370, 1948, 2435, 2740, 3896, 4247, 4870, 5480, 8494, 9740, 15097, 16988, 19480, 21235, 30194, 33976, 42470, 60388, 66719, 75485, 84940, 120776, 133438, 150970, 169880, 266876, 301940, 333595, 533752, 603880, 667190, 1334380, 2068289, 2668760, 4136578, 8273156, 10341445, 16546312, 20682890, 41365780, 82731560]

約数ペア:

[(1, 82731560), (2, 41365780), (4, 20682890), (5, 16546312), (8, 10341445), (10, 8273156), (20, 4136578), (31, 2668760), (40, 2068289), (62, 1334380), (124, 667190), (137, 603880), (155, 533752), (248, 333595), (274, 301940), (310, 266876), (487, 169880), (548, 150970), (620, 133438), (685, 120776), (974, 84940), (1096, 75485), (1240, 66719), (1370, 60388), (1948, 42470), (2435, 33976), (2740, 30194), (3896, 21235), (4247, 19480), (4870, 16988), (5480, 15097), (8494, 9740)]