20647690564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{521}}^1\times {\mathrm{2647}}^1$

素因数の和:3388

約数の個数: 48

約数和(自身を含む): 38316136320

約数和(自身を除く): 17668445756

約数列:

[1, 2, 4, 19, 38, 76, 197, 394, 521, 788, 1042, 2084, 2647, 3743, 5294, 7486, 9899, 10588, 14972, 19798, 39596, 50293, 100586, 102637, 201172, 205274, 410548, 521459, 1042918, 1379087, 1950103, 2085836, 2758174, 3900206, 5516348, 7800412, 9907721, 19815442, 26202653, 39630884, 52405306, 104810612, 271680139, 543360278, 1086720556, 5161922641, 10323845282, 20647690564]

約数ペア:

[(1, 20647690564), (2, 10323845282), (4, 5161922641), (19, 1086720556), (38, 543360278), (76, 271680139), (197, 104810612), (394, 52405306), (521, 39630884), (788, 26202653), (1042, 19815442), (2084, 9907721), (2647, 7800412), (3743, 5516348), (5294, 3900206), (7486, 2758174), (9899, 2085836), (10588, 1950103), (14972, 1379087), (19798, 1042918), (39596, 521459), (50293, 410548), (100586, 205274), (102637, 201172)]