20216573572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{280303}}^1$

素因数の和:280412

約数の個数: 48

約数和(自身を含む): 40655292160

約数和(自身を除く): 20438718588

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 73, 76, 146, 247, 292, 494, 949, 988, 1387, 1898, 2774, 3796, 5548, 18031, 36062, 72124, 280303, 560606, 1121212, 3643939, 5325757, 7287878, 10651514, 14575756, 20462119, 21303028, 40924238, 69234841, 81848476, 138469682, 266007547, 276939364, 388780261, 532015094, 777560522, 1064030188, 1555121044, 5054143393, 10108286786, 20216573572]

約数ペア:

[(1, 20216573572), (2, 10108286786), (4, 5054143393), (13, 1555121044), (19, 1064030188), (26, 777560522), (38, 532015094), (52, 388780261), (73, 276939364), (76, 266007547), (146, 138469682), (247, 81848476), (292, 69234841), (494, 40924238), (949, 21303028), (988, 20462119), (1387, 14575756), (1898, 10651514), (2774, 7287878), (3796, 5325757), (5548, 3643939), (18031, 1121212), (36062, 560606), (72124, 280303)]