20264816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1$

素因数の和:570

約数の個数: 80

約数和(自身を含む): 48934368

約数和(自身を除く): 28669552

約数列:

[1, 2, 4, 8, 11, 13, 16, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 176, 187, 208, 221, 272, 286, 374, 442, 521, 572, 748, 884, 1042, 1144, 1496, 1768, 2084, 2288, 2431, 2992, 3536, 4168, 4862, 5731, 6773, 8336, 8857, 9724, 11462, 13546, 17714, 19448, 22924, 27092, 35428, 38896, 45848, 54184, 70856, 74503, 91696, 97427, 108368, 115141, 141712, 149006, 194854, 230282, 298012, 389708, 460564, 596024, 779416, 921128, 1192048, 1266551, 1558832, 1842256, 2533102, 5066204, 10132408, 20264816]

約数ペア:

[(1, 20264816), (2, 10132408), (4, 5066204), (8, 2533102), (11, 1842256), (13, 1558832), (16, 1266551), (17, 1192048), (22, 921128), (26, 779416), (34, 596024), (44, 460564), (52, 389708), (68, 298012), (88, 230282), (104, 194854), (136, 149006), (143, 141712), (176, 115141), (187, 108368), (208, 97427), (221, 91696), (272, 74503), (286, 70856), (374, 54184), (442, 45848), (521, 38896), (572, 35428), (748, 27092), (884, 22924), (1042, 19448), (1144, 17714), (1496, 13546), (1768, 11462), (2084, 9724), (2288, 8857), (2431, 8336), (2992, 6773), (3536, 5731), (4168, 4862)]