12659820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{821}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 35628768

約数和(自身を除く): 22968948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 821, 1028, 1285, 1542, 1642, 2463, 2570, 3084, 3284, 3855, 4105, 4926, 5140, 7710, 8210, 9852, 12315, 15420, 16420, 24630, 49260, 210997, 421994, 632991, 843988, 1054985, 1265982, 2109970, 2531964, 3164955, 4219940, 6329910, 12659820]

約数ペア:

[(1, 12659820), (2, 6329910), (3, 4219940), (4, 3164955), (5, 2531964), (6, 2109970), (10, 1265982), (12, 1054985), (15, 843988), (20, 632991), (30, 421994), (60, 210997), (257, 49260), (514, 24630), (771, 16420), (821, 15420), (1028, 12315), (1285, 9852), (1542, 8210), (1642, 7710), (2463, 5140), (2570, 4926), (3084, 4105), (3284, 3855)]