678169640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{18859}}^1$

素因数の和:18930

約数の個数: 64

約数和(自身を含む): 1629504000

約数和(自身を除く): 951334360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 3596, 4495, 7192, 8990, 17980, 18859, 35960, 37718, 75436, 94295, 150872, 188590, 377180, 546911, 584629, 754360, 1093822, 1169258, 2187644, 2338516, 2734555, 2923145, 4375288, 4677032, 5469110, 5846290, 10938220, 11692580, 16954241, 21876440, 23385160, 33908482, 67816964, 84771205, 135633928, 169542410, 339084820, 678169640]

約数ペア:

[(1, 678169640), (2, 339084820), (4, 169542410), (5, 135633928), (8, 84771205), (10, 67816964), (20, 33908482), (29, 23385160), (31, 21876440), (40, 16954241), (58, 11692580), (62, 10938220), (116, 5846290), (124, 5469110), (145, 4677032), (155, 4375288), (232, 2923145), (248, 2734555), (290, 2338516), (310, 2187644), (580, 1169258), (620, 1093822), (899, 754360), (1160, 584629), (1240, 546911), (1798, 377180), (3596, 188590), (4495, 150872), (7192, 94295), (8990, 75436), (17980, 37718), (18859, 35960)]