249860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:84

約数の個数: 36

約数和(自身を含む): 583884

約数和(自身を除く): 334024

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 961, 1612, 1922, 2015, 3844, 4030, 4805, 8060, 9610, 12493, 19220, 24986, 49972, 62465, 124930, 249860]

約数ペア:

[(1, 249860), (2, 124930), (4, 62465), (5, 49972), (10, 24986), (13, 19220), (20, 12493), (26, 9610), (31, 8060), (52, 4805), (62, 4030), (65, 3844), (124, 2015), (130, 1922), (155, 1612), (260, 961), (310, 806), (403, 620)]