398315920

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{16993}}^1$

素因数の和:17299

約数の個数: 40

約数和(自身を含む): 929299896

約数和(自身を除く): 530983976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 1172, 1465, 2344, 2930, 4688, 5860, 11720, 16993, 23440, 33986, 67972, 84965, 135944, 169930, 271888, 339860, 679720, 1359440, 4978949, 9957898, 19915796, 24894745, 39831592, 49789490, 79663184, 99578980, 199157960, 398315920]

約数ペア:

[(1, 398315920), (2, 199157960), (4, 99578980), (5, 79663184), (8, 49789490), (10, 39831592), (16, 24894745), (20, 19915796), (40, 9957898), (80, 4978949), (293, 1359440), (586, 679720), (1172, 339860), (1465, 271888), (2344, 169930), (2930, 135944), (4688, 84965), (5860, 67972), (11720, 33986), (16993, 23440)]