139198640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{248569}}^1$

素因数の和:248589

約数の個数: 40

約数和(自身を含む): 369872160

約数和(自身を除く): 230673520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 248569, 497138, 994276, 1242845, 1739983, 1988552, 2485690, 3479966, 3977104, 4971380, 6959932, 8699915, 9942760, 13919864, 17399830, 19885520, 27839728, 34799660, 69599320, 139198640]

約数ペア:

[(1, 139198640), (2, 69599320), (4, 34799660), (5, 27839728), (7, 19885520), (8, 17399830), (10, 13919864), (14, 9942760), (16, 8699915), (20, 6959932), (28, 4971380), (35, 3977104), (40, 3479966), (56, 2485690), (70, 1988552), (80, 1739983), (112, 1242845), (140, 994276), (280, 497138), (560, 248569)]