20888911660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{6551}}^1$

素因数の和:6767

約数の個数: 96

約数和(自身を含む): 46847324160

約数和(自身を除く): 25958412500

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 139, 148, 155, 185, 278, 310, 370, 556, 620, 695, 740, 1147, 1390, 2294, 2780, 4309, 4588, 5143, 5735, 6551, 8618, 10286, 11470, 13102, 17236, 20572, 21545, 22940, 25715, 26204, 32755, 43090, 51430, 65510, 86180, 102860, 131020, 159433, 203081, 242387, 318866, 406162, 484774, 637732, 797165, 812324, 910589, 969548, 1015405, 1211935, 1594330, 1821178, 2030810, 2423870, 3188660, 3642356, 4061620, 4552945, 4847740, 7513997, 9105890, 15027994, 18211780, 28228259, 30055988, 33691793, 37569985, 56456518, 67383586, 75139970, 112913036, 134767172, 141141295, 150279940, 168458965, 282282590, 336917930, 564565180, 673835860, 1044445583, 2088891166, 4177782332, 5222227915, 10444455830, 20888911660]

約数ペア:

[(1, 20888911660), (2, 10444455830), (4, 5222227915), (5, 4177782332), (10, 2088891166), (20, 1044445583), (31, 673835860), (37, 564565180), (62, 336917930), (74, 282282590), (124, 168458965), (139, 150279940), (148, 141141295), (155, 134767172), (185, 112913036), (278, 75139970), (310, 67383586), (370, 56456518), (556, 37569985), (620, 33691793), (695, 30055988), (740, 28228259), (1147, 18211780), (1390, 15027994), (2294, 9105890), (2780, 7513997), (4309, 4847740), (4588, 4552945), (5143, 4061620), (5735, 3642356), (6551, 3188660), (8618, 2423870), (10286, 2030810), (11470, 1821178), (13102, 1594330), (17236, 1211935), (20572, 1015405), (21545, 969548), (22940, 910589), (25715, 812324), (26204, 797165), (32755, 637732), (43090, 484774), (51430, 406162), (65510, 318866), (86180, 242387), (102860, 203081), (131020, 159433)]