171771440

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4373}}^1$

素因数の和:4877

約数の個数: 40

約数和(自身を含む): 400273488

約数和(自身を除く): 228502048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3928, 4373, 4910, 7856, 8746, 9820, 17492, 19640, 21865, 34984, 39280, 43730, 69968, 87460, 174920, 349840, 2147143, 4294286, 8588572, 10735715, 17177144, 21471430, 34354288, 42942860, 85885720, 171771440]

約数ペア:

[(1, 171771440), (2, 85885720), (4, 42942860), (5, 34354288), (8, 21471430), (10, 17177144), (16, 10735715), (20, 8588572), (40, 4294286), (80, 2147143), (491, 349840), (982, 174920), (1964, 87460), (2455, 69968), (3928, 43730), (4373, 39280), (4910, 34984), (7856, 21865), (8746, 19640), (9820, 17492)]