18719940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16421}}^1$

素因数の和:16452

約数の個数: 48

約数和(自身を含む): 55177920

約数和(自身を除く): 36457980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 16421, 32842, 49263, 65684, 82105, 98526, 164210, 197052, 246315, 311999, 328420, 492630, 623998, 935997, 985260, 1247996, 1559995, 1871994, 3119990, 3743988, 4679985, 6239980, 9359970, 18719940]

約数ペア:

[(1, 18719940), (2, 9359970), (3, 6239980), (4, 4679985), (5, 3743988), (6, 3119990), (10, 1871994), (12, 1559995), (15, 1247996), (19, 985260), (20, 935997), (30, 623998), (38, 492630), (57, 328420), (60, 311999), (76, 246315), (95, 197052), (114, 164210), (190, 98526), (228, 82105), (285, 65684), (380, 49263), (570, 32842), (1140, 16421)]