19817992020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{766357}}^1$

素因数の和:766800

約数の個数: 48

約数和(自身を含む): 55619198208

約数和(自身を除く): 35801206188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 431, 862, 1293, 1724, 2155, 2586, 4310, 5172, 6465, 8620, 12930, 25860, 766357, 1532714, 2299071, 3065428, 3831785, 4598142, 7663570, 9196284, 11495355, 15327140, 22990710, 45981420, 330299867, 660599734, 990899601, 1321199468, 1651499335, 1981799202, 3302998670, 3963598404, 4954498005, 6605997340, 9908996010, 19817992020]

約数ペア:

[(1, 19817992020), (2, 9908996010), (3, 6605997340), (4, 4954498005), (5, 3963598404), (6, 3302998670), (10, 1981799202), (12, 1651499335), (15, 1321199468), (20, 990899601), (30, 660599734), (60, 330299867), (431, 45981420), (862, 22990710), (1293, 15327140), (1724, 11495355), (2155, 9196284), (2586, 7663570), (4310, 4598142), (5172, 3831785), (6465, 3065428), (8620, 2299071), (12930, 1532714), (25860, 766357)]