18886840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67453}}^1$

素因数の和:67471

約数の個数: 32

約数和(自身を含む): 48566880

約数和(自身を除く): 29680040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67453, 134906, 269812, 337265, 472171, 539624, 674530, 944342, 1349060, 1888684, 2360855, 2698120, 3777368, 4721710, 9443420, 18886840]

約数ペア:

[(1, 18886840), (2, 9443420), (4, 4721710), (5, 3777368), (7, 2698120), (8, 2360855), (10, 1888684), (14, 1349060), (20, 944342), (28, 674530), (35, 539624), (40, 472171), (56, 337265), (70, 269812), (140, 134906), (280, 67453)]