19479740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2281}}^1$

素因数の和:2358

約数の個数: 48

約数和(自身を含む): 47538624

約数和(自身を除く): 28058884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 2281, 4270, 4562, 8540, 9124, 11405, 15967, 22810, 31934, 45620, 63868, 79835, 139141, 159670, 278282, 319340, 556564, 695705, 973987, 1391410, 1947974, 2782820, 3895948, 4869935, 9739870, 19479740]

約数ペア:

[(1, 19479740), (2, 9739870), (4, 4869935), (5, 3895948), (7, 2782820), (10, 1947974), (14, 1391410), (20, 973987), (28, 695705), (35, 556564), (61, 319340), (70, 278282), (122, 159670), (140, 139141), (244, 79835), (305, 63868), (427, 45620), (610, 31934), (854, 22810), (1220, 15967), (1708, 11405), (2135, 9124), (2281, 8540), (4270, 4562)]