20358436

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 42883456

約数和(自身を除く): 22525020

約数列:

[1, 2, 4, 7, 14, 28, 37, 43, 74, 86, 148, 172, 259, 301, 457, 518, 602, 914, 1036, 1204, 1591, 1828, 3182, 3199, 6364, 6398, 11137, 12796, 16909, 19651, 22274, 33818, 39302, 44548, 67636, 78604, 118363, 137557, 236726, 275114, 473452, 550228, 727087, 1454174, 2908348, 5089609, 10179218, 20358436]

約数ペア:

[(1, 20358436), (2, 10179218), (4, 5089609), (7, 2908348), (14, 1454174), (28, 727087), (37, 550228), (43, 473452), (74, 275114), (86, 236726), (148, 137557), (172, 118363), (259, 78604), (301, 67636), (457, 44548), (518, 39302), (602, 33818), (914, 22274), (1036, 19651), (1204, 16909), (1591, 12796), (1828, 11137), (3182, 6398), (3199, 6364)]