389492020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1\times {\mathrm{1523}}^1$

素因数の和:2224

約数の個数: 48

約数和(自身を含む): 862827840

約数和(自身を除く): 473335820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 673, 1346, 1523, 2692, 3046, 3365, 6092, 6730, 7615, 12787, 13460, 15230, 25574, 28937, 30460, 51148, 57874, 63935, 115748, 127870, 144685, 255740, 289370, 578740, 1024979, 2049958, 4099916, 5124895, 10249790, 19474601, 20499580, 38949202, 77898404, 97373005, 194746010, 389492020]

約数ペア:

[(1, 389492020), (2, 194746010), (4, 97373005), (5, 77898404), (10, 38949202), (19, 20499580), (20, 19474601), (38, 10249790), (76, 5124895), (95, 4099916), (190, 2049958), (380, 1024979), (673, 578740), (1346, 289370), (1523, 255740), (2692, 144685), (3046, 127870), (3365, 115748), (6092, 63935), (6730, 57874), (7615, 51148), (12787, 30460), (13460, 28937), (15230, 25574)]