258888440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{2027}}^1$

素因数の和:2172

約数の個数: 64

約数和(自身を含む): 607426560

約数和(自身を除く): 348538120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 124, 155, 206, 248, 310, 412, 515, 620, 824, 1030, 1240, 2027, 2060, 3193, 4054, 4120, 6386, 8108, 10135, 12772, 15965, 16216, 20270, 25544, 31930, 40540, 62837, 63860, 81080, 125674, 127720, 208781, 251348, 314185, 417562, 502696, 628370, 835124, 1043905, 1256740, 1670248, 2087810, 2513480, 4175620, 6472211, 8351240, 12944422, 25888844, 32361055, 51777688, 64722110, 129444220, 258888440]

約数ペア:

[(1, 258888440), (2, 129444220), (4, 64722110), (5, 51777688), (8, 32361055), (10, 25888844), (20, 12944422), (31, 8351240), (40, 6472211), (62, 4175620), (103, 2513480), (124, 2087810), (155, 1670248), (206, 1256740), (248, 1043905), (310, 835124), (412, 628370), (515, 502696), (620, 417562), (824, 314185), (1030, 251348), (1240, 208781), (2027, 127720), (2060, 125674), (3193, 81080), (4054, 63860), (4120, 62837), (6386, 40540), (8108, 31930), (10135, 25544), (12772, 20270), (15965, 16216)]