18959920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{33857}}^1$

素因数の和:33877

約数の個数: 40

約数和(自身を含む): 50380704

約数和(自身を除く): 31420784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 33857, 67714, 135428, 169285, 236999, 270856, 338570, 473998, 541712, 677140, 947996, 1184995, 1354280, 1895992, 2369990, 2708560, 3791984, 4739980, 9479960, 18959920]

約数ペア:

[(1, 18959920), (2, 9479960), (4, 4739980), (5, 3791984), (7, 2708560), (8, 2369990), (10, 1895992), (14, 1354280), (16, 1184995), (20, 947996), (28, 677140), (35, 541712), (40, 473998), (56, 338570), (70, 270856), (80, 236999), (112, 169285), (140, 135428), (280, 67714), (560, 33857)]