8740019620

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{661121}}^1$

素因数の和:661791

約数の個数: 24

約数和(自身を含む): 18381836088

約数和(自身を除く): 9641816468

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 6610, 13220, 661121, 1322242, 2644484, 3305605, 6611210, 13222420, 437000981, 874001962, 1748003924, 2185004905, 4370009810, 8740019620]

約数ペア:

[(1, 8740019620), (2, 4370009810), (4, 2185004905), (5, 1748003924), (10, 874001962), (20, 437000981), (661, 13222420), (1322, 6611210), (2644, 3305605), (3305, 2644484), (6610, 1322242), (13220, 661121)]