20339856

素因数分解:

$2^4\times 3^3\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:453

約数の個数: 80

約数和(自身を含む): 58924800

約数和(自身を除く): 38584944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 197, 216, 239, 394, 432, 478, 591, 717, 788, 956, 1182, 1434, 1576, 1773, 1912, 2151, 2364, 2868, 3152, 3546, 3824, 4302, 4728, 5319, 5736, 6453, 7092, 8604, 9456, 10638, 11472, 12906, 14184, 17208, 21276, 25812, 28368, 34416, 42552, 47083, 51624, 85104, 94166, 103248, 141249, 188332, 282498, 376664, 423747, 564996, 753328, 847494, 1129992, 1271241, 1694988, 2259984, 2542482, 3389976, 5084964, 6779952, 10169928, 20339856]

約数ペア:

[(1, 20339856), (2, 10169928), (3, 6779952), (4, 5084964), (6, 3389976), (8, 2542482), (9, 2259984), (12, 1694988), (16, 1271241), (18, 1129992), (24, 847494), (27, 753328), (36, 564996), (48, 423747), (54, 376664), (72, 282498), (108, 188332), (144, 141249), (197, 103248), (216, 94166), (239, 85104), (394, 51624), (432, 47083), (478, 42552), (591, 34416), (717, 28368), (788, 25812), (956, 21276), (1182, 17208), (1434, 14184), (1576, 12906), (1773, 11472), (1912, 10638), (2151, 9456), (2364, 8604), (2868, 7092), (3152, 6453), (3546, 5736), (3824, 5319), (4302, 4728)]