209278180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1\times {\mathrm{503}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 448084224

約数和(自身を除く): 238806044

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 293, 355, 503, 586, 710, 1006, 1172, 1420, 1465, 2012, 2515, 2930, 5030, 5860, 10060, 20803, 35713, 41606, 71426, 83212, 104015, 142852, 147379, 178565, 208030, 294758, 357130, 416060, 589516, 714260, 736895, 1473790, 2947580, 10463909, 20927818, 41855636, 52319545, 104639090, 209278180]

約数ペア:

[(1, 209278180), (2, 104639090), (4, 52319545), (5, 41855636), (10, 20927818), (20, 10463909), (71, 2947580), (142, 1473790), (284, 736895), (293, 714260), (355, 589516), (503, 416060), (586, 357130), (710, 294758), (1006, 208030), (1172, 178565), (1420, 147379), (1465, 142852), (2012, 104015), (2515, 83212), (2930, 71426), (5030, 41606), (5860, 35713), (10060, 20803)]