19783860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1283}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 55653696

約数和(自身を除く): 35869836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 257, 514, 771, 1028, 1283, 1285, 1542, 2566, 2570, 3084, 3849, 3855, 5132, 5140, 6415, 7698, 7710, 12830, 15396, 15420, 19245, 25660, 38490, 76980, 329731, 659462, 989193, 1318924, 1648655, 1978386, 3297310, 3956772, 4945965, 6594620, 9891930, 19783860]

約数ペア:

[(1, 19783860), (2, 9891930), (3, 6594620), (4, 4945965), (5, 3956772), (6, 3297310), (10, 1978386), (12, 1648655), (15, 1318924), (20, 989193), (30, 659462), (60, 329731), (257, 76980), (514, 38490), (771, 25660), (1028, 19245), (1283, 15420), (1285, 15396), (1542, 12830), (2566, 7710), (2570, 7698), (3084, 6415), (3849, 5140), (3855, 5132)]