71078840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{253853}}^1$

素因数の和:253871

約数の個数: 32

約数和(自身を含む): 182774880

約数和(自身を除く): 111696040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 253853, 507706, 1015412, 1269265, 1776971, 2030824, 2538530, 3553942, 5077060, 7107884, 8884855, 10154120, 14215768, 17769710, 35539420, 71078840]

約数ペア:

[(1, 71078840), (2, 35539420), (4, 17769710), (5, 14215768), (7, 10154120), (8, 8884855), (10, 7107884), (14, 5077060), (20, 3553942), (28, 2538530), (35, 2030824), (40, 1776971), (56, 1269265), (70, 1015412), (140, 507706), (280, 253853)]