639158401

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 813773952

約数和(自身を除く): 174615551

約数列:

[1, 7, 17, 49, 71, 101, 107, 119, 497, 707, 749, 833, 1207, 1717, 1819, 3479, 4949, 5243, 7171, 7597, 8449, 10807, 12019, 12733, 50197, 53179, 59143, 75649, 84133, 89131, 121907, 129149, 183719, 351379, 372253, 529543, 767297, 853349, 904043, 1286033, 5371079, 5973443, 6328301, 9002231, 13044049, 37597553, 91308343, 639158401]

約数ペア:

[(1, 639158401), (7, 91308343), (17, 37597553), (49, 13044049), (71, 9002231), (101, 6328301), (107, 5973443), (119, 5371079), (497, 1286033), (707, 904043), (749, 853349), (833, 767297), (1207, 529543), (1717, 372253), (1819, 351379), (3479, 183719), (4949, 129149), (5243, 121907), (7171, 89131), (7597, 84133), (8449, 75649), (10807, 59143), (12019, 53179), (12733, 50197)]