18916804564

素因数分解:

$2^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{797}}^1\times {\mathrm{1459}}^1$

素因数の和:2357

約数の個数: 72

約数和(自身を含む): 39048821280

約数和(自身を除く): 20132016716

約数列:

[1, 2, 4, 7, 14, 28, 49, 83, 98, 166, 196, 332, 581, 797, 1162, 1459, 1594, 2324, 2918, 3188, 4067, 5579, 5836, 8134, 10213, 11158, 16268, 20426, 22316, 39053, 40852, 66151, 71491, 78106, 121097, 132302, 142982, 156212, 242194, 264604, 285964, 463057, 484388, 847679, 926114, 1162823, 1695358, 1852228, 2325646, 3241399, 3390716, 4651292, 5933753, 6482798, 8139761, 11867506, 12965596, 16279522, 23735012, 32559044, 56978327, 96514309, 113956654, 193028618, 227913308, 386057236, 675600163, 1351200326, 2702400652, 4729201141, 9458402282, 18916804564]

約数ペア:

[(1, 18916804564), (2, 9458402282), (4, 4729201141), (7, 2702400652), (14, 1351200326), (28, 675600163), (49, 386057236), (83, 227913308), (98, 193028618), (166, 113956654), (196, 96514309), (332, 56978327), (581, 32559044), (797, 23735012), (1162, 16279522), (1459, 12965596), (1594, 11867506), (2324, 8139761), (2918, 6482798), (3188, 5933753), (4067, 4651292), (5579, 3390716), (5836, 3241399), (8134, 2325646), (10213, 1852228), (11158, 1695358), (16268, 1162823), (20426, 926114), (22316, 847679), (39053, 484388), (40852, 463057), (66151, 285964), (71491, 264604), (78106, 242194), (121097, 156212), (132302, 142982)]