28721500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:176

約数の個数: 96

約数和(自身を含む): 69189120

約数和(自身を除く): 40467620

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 31, 34, 50, 62, 68, 85, 100, 109, 124, 125, 155, 170, 218, 250, 310, 340, 425, 436, 500, 527, 545, 620, 775, 850, 1054, 1090, 1550, 1700, 1853, 2108, 2125, 2180, 2635, 2725, 3100, 3379, 3706, 3875, 4250, 5270, 5450, 6758, 7412, 7750, 8500, 9265, 10540, 10900, 13175, 13516, 13625, 15500, 16895, 18530, 26350, 27250, 33790, 37060, 46325, 52700, 54500, 57443, 65875, 67580, 84475, 92650, 114886, 131750, 168950, 185300, 229772, 231625, 263500, 287215, 337900, 422375, 463250, 574430, 844750, 926500, 1148860, 1436075, 1689500, 2872150, 5744300, 7180375, 14360750, 28721500]

約数ペア:

[(1, 28721500), (2, 14360750), (4, 7180375), (5, 5744300), (10, 2872150), (17, 1689500), (20, 1436075), (25, 1148860), (31, 926500), (34, 844750), (50, 574430), (62, 463250), (68, 422375), (85, 337900), (100, 287215), (109, 263500), (124, 231625), (125, 229772), (155, 185300), (170, 168950), (218, 131750), (250, 114886), (310, 92650), (340, 84475), (425, 67580), (436, 65875), (500, 57443), (527, 54500), (545, 52700), (620, 46325), (775, 37060), (850, 33790), (1054, 27250), (1090, 26350), (1550, 18530), (1700, 16895), (1853, 15500), (2108, 13625), (2125, 13516), (2180, 13175), (2635, 10900), (2725, 10540), (3100, 9265), (3379, 8500), (3706, 7750), (3875, 7412), (4250, 6758), (5270, 5450)]