20880144

素因数分解:

$2^4\times 3^2\times {\mathrm{83}}^1\times {\mathrm{1747}}^1$

素因数の和:1844

約数の個数: 60

約数和(自身を含む): 59173296

約数和(自身を除く): 38293152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 83, 144, 166, 249, 332, 498, 664, 747, 996, 1328, 1494, 1747, 1992, 2988, 3494, 3984, 5241, 5976, 6988, 10482, 11952, 13976, 15723, 20964, 27952, 31446, 41928, 62892, 83856, 125784, 145001, 251568, 290002, 435003, 580004, 870006, 1160008, 1305009, 1740012, 2320016, 2610018, 3480024, 5220036, 6960048, 10440072, 20880144]

約数ペア:

[(1, 20880144), (2, 10440072), (3, 6960048), (4, 5220036), (6, 3480024), (8, 2610018), (9, 2320016), (12, 1740012), (16, 1305009), (18, 1160008), (24, 870006), (36, 580004), (48, 435003), (72, 290002), (83, 251568), (144, 145001), (166, 125784), (249, 83856), (332, 62892), (498, 41928), (664, 31446), (747, 27952), (996, 20964), (1328, 15723), (1494, 13976), (1747, 11952), (1992, 10482), (2988, 6988), (3494, 5976), (3984, 5241)]