17779720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{63499}}^1$

素因数の和:63517

約数の個数: 32

約数和(自身を含む): 45720000

約数和(自身を除く): 27940280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 63499, 126998, 253996, 317495, 444493, 507992, 634990, 888986, 1269980, 1777972, 2222465, 2539960, 3555944, 4444930, 8889860, 17779720]

約数ペア:

[(1, 17779720), (2, 8889860), (4, 4444930), (5, 3555944), (7, 2539960), (8, 2222465), (10, 1777972), (14, 1269980), (20, 888986), (28, 634990), (35, 507992), (40, 444493), (56, 317495), (70, 253996), (140, 126998), (280, 63499)]