20304752

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:166

約数の個数: 80

約数和(自身を含む): 45330432

約数和(自身を除く): 25025680

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 47, 52, 62, 67, 94, 104, 124, 134, 188, 208, 248, 268, 376, 403, 496, 536, 611, 752, 806, 871, 1072, 1222, 1457, 1612, 1742, 2077, 2444, 2914, 3149, 3224, 3484, 4154, 4888, 5828, 6298, 6448, 6968, 8308, 9776, 11656, 12596, 13936, 16616, 18941, 23312, 25192, 27001, 33232, 37882, 40937, 50384, 54002, 75764, 81874, 97619, 108004, 151528, 163748, 195238, 216008, 303056, 327496, 390476, 432016, 654992, 780952, 1269047, 1561904, 2538094, 5076188, 10152376, 20304752]

約数ペア:

[(1, 20304752), (2, 10152376), (4, 5076188), (8, 2538094), (13, 1561904), (16, 1269047), (26, 780952), (31, 654992), (47, 432016), (52, 390476), (62, 327496), (67, 303056), (94, 216008), (104, 195238), (124, 163748), (134, 151528), (188, 108004), (208, 97619), (248, 81874), (268, 75764), (376, 54002), (403, 50384), (496, 40937), (536, 37882), (611, 33232), (752, 27001), (806, 25192), (871, 23312), (1072, 18941), (1222, 16616), (1457, 13936), (1612, 12596), (1742, 11656), (2077, 9776), (2444, 8308), (2914, 6968), (3149, 6448), (3224, 6298), (3484, 5828), (4154, 4888)]