388789820

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{313}}^1\times {\mathrm{359}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 826096320

約数和(自身を除く): 437306500

約数列:

[1, 2, 4, 5, 10, 20, 173, 313, 346, 359, 626, 692, 718, 865, 1252, 1436, 1565, 1730, 1795, 3130, 3460, 3590, 6260, 7180, 54149, 62107, 108298, 112367, 124214, 216596, 224734, 248428, 270745, 310535, 449468, 541490, 561835, 621070, 1082980, 1123670, 1242140, 2247340, 19439491, 38878982, 77757964, 97197455, 194394910, 388789820]

約数ペア:

[(1, 388789820), (2, 194394910), (4, 97197455), (5, 77757964), (10, 38878982), (20, 19439491), (173, 2247340), (313, 1242140), (346, 1123670), (359, 1082980), (626, 621070), (692, 561835), (718, 541490), (865, 449468), (1252, 310535), (1436, 270745), (1565, 248428), (1730, 224734), (1795, 216596), (3130, 124214), (3460, 112367), (3590, 108298), (6260, 62107), (7180, 54149)]