28404260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 61471872

約数和(自身を除く): 33067612

約数列:

[1, 2, 4, 5, 10, 20, 71, 83, 142, 166, 241, 284, 332, 355, 415, 482, 710, 830, 964, 1205, 1420, 1660, 2410, 4820, 5893, 11786, 17111, 20003, 23572, 29465, 34222, 40006, 58930, 68444, 80012, 85555, 100015, 117860, 171110, 200030, 342220, 400060, 1420213, 2840426, 5680852, 7101065, 14202130, 28404260]

約数ペア:

[(1, 28404260), (2, 14202130), (4, 7101065), (5, 5680852), (10, 2840426), (20, 1420213), (71, 400060), (83, 342220), (142, 200030), (166, 171110), (241, 117860), (284, 100015), (332, 85555), (355, 80012), (415, 68444), (482, 58930), (710, 40006), (830, 34222), (964, 29465), (1205, 23572), (1420, 20003), (1660, 17111), (2410, 11786), (4820, 5893)]