2439920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{4357}}^1$

素因数の和:4377

約数の個数: 40

約数和(自身を含む): 6484704

約数和(自身を除く): 4044784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 4357, 8714, 17428, 21785, 30499, 34856, 43570, 60998, 69712, 87140, 121996, 152495, 174280, 243992, 304990, 348560, 487984, 609980, 1219960, 2439920]

約数ペア:

[(1, 2439920), (2, 1219960), (4, 609980), (5, 487984), (7, 348560), (8, 304990), (10, 243992), (14, 174280), (16, 152495), (20, 121996), (28, 87140), (35, 69712), (40, 60998), (56, 43570), (70, 34856), (80, 30499), (112, 21785), (140, 17428), (280, 8714), (560, 4357)]