165196520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1049}}^1$

素因数の和:1218

約数の個数: 64

約数和(自身を含む): 387072000

約数和(自身を除く): 221875480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 508, 620, 635, 1016, 1049, 1240, 1270, 2098, 2540, 3937, 4196, 5080, 5245, 7874, 8392, 10490, 15748, 19685, 20980, 31496, 32519, 39370, 41960, 65038, 78740, 130076, 133223, 157480, 162595, 260152, 266446, 325190, 532892, 650380, 666115, 1065784, 1300760, 1332230, 2664460, 4129913, 5328920, 8259826, 16519652, 20649565, 33039304, 41299130, 82598260, 165196520]

約数ペア:

[(1, 165196520), (2, 82598260), (4, 41299130), (5, 33039304), (8, 20649565), (10, 16519652), (20, 8259826), (31, 5328920), (40, 4129913), (62, 2664460), (124, 1332230), (127, 1300760), (155, 1065784), (248, 666115), (254, 650380), (310, 532892), (508, 325190), (620, 266446), (635, 260152), (1016, 162595), (1049, 157480), (1240, 133223), (1270, 130076), (2098, 78740), (2540, 65038), (3937, 41960), (4196, 39370), (5080, 32519), (5245, 31496), (7874, 20980), (8392, 19685), (10490, 15748)]