6443980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 14192640

約数和(自身を除く): 7748660

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 127, 172, 215, 236, 254, 295, 430, 508, 590, 635, 860, 1180, 1270, 2537, 2540, 5074, 5461, 7493, 10148, 10922, 12685, 14986, 21844, 25370, 27305, 29972, 37465, 50740, 54610, 74930, 109220, 149860, 322199, 644398, 1288796, 1610995, 3221990, 6443980]

約数ペア:

[(1, 6443980), (2, 3221990), (4, 1610995), (5, 1288796), (10, 644398), (20, 322199), (43, 149860), (59, 109220), (86, 74930), (118, 54610), (127, 50740), (172, 37465), (215, 29972), (236, 27305), (254, 25370), (295, 21844), (430, 14986), (508, 12685), (590, 10922), (635, 10148), (860, 7493), (1180, 5461), (1270, 5074), (2537, 2540)]