129256760

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 297086400

約数和(自身を除く): 167829640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 137, 206, 229, 274, 412, 458, 515, 548, 685, 824, 916, 1030, 1096, 1145, 1370, 1832, 2060, 2290, 2740, 4120, 4580, 5480, 9160, 14111, 23587, 28222, 31373, 47174, 56444, 62746, 70555, 94348, 112888, 117935, 125492, 141110, 156865, 188696, 235870, 250984, 282220, 313730, 471740, 564440, 627460, 943480, 1254920, 3231419, 6462838, 12925676, 16157095, 25851352, 32314190, 64628380, 129256760]

約数ペア:

[(1, 129256760), (2, 64628380), (4, 32314190), (5, 25851352), (8, 16157095), (10, 12925676), (20, 6462838), (40, 3231419), (103, 1254920), (137, 943480), (206, 627460), (229, 564440), (274, 471740), (412, 313730), (458, 282220), (515, 250984), (548, 235870), (685, 188696), (824, 156865), (916, 141110), (1030, 125492), (1096, 117935), (1145, 112888), (1370, 94348), (1832, 70555), (2060, 62746), (2290, 56444), (2740, 47174), (4120, 31373), (4580, 28222), (5480, 23587), (9160, 14111)]