28372750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 62779392

約数和(自身を除く): 34406642

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 125, 155, 175, 217, 250, 310, 350, 434, 523, 775, 875, 1046, 1085, 1550, 1750, 2170, 2615, 3661, 3875, 5230, 5425, 7322, 7750, 10850, 13075, 16213, 18305, 26150, 27125, 32426, 36610, 54250, 65375, 81065, 91525, 113491, 130750, 162130, 183050, 226982, 405325, 457625, 567455, 810650, 915250, 1134910, 2026625, 2837275, 4053250, 5674550, 14186375, 28372750]

約数ペア:

[(1, 28372750), (2, 14186375), (5, 5674550), (7, 4053250), (10, 2837275), (14, 2026625), (25, 1134910), (31, 915250), (35, 810650), (50, 567455), (62, 457625), (70, 405325), (125, 226982), (155, 183050), (175, 162130), (217, 130750), (250, 113491), (310, 91525), (350, 81065), (434, 65375), (523, 54250), (775, 36610), (875, 32426), (1046, 27125), (1085, 26150), (1550, 18305), (1750, 16213), (2170, 13075), (2615, 10850), (3661, 7750), (3875, 7322), (5230, 5425)]