78312500

素因数分解:

$2^2\times 5^6\times 7^1\times {\mathrm{179}}^1$

素因数の和:220

約数の個数: 84

約数和(自身を含む): 196872480

約数和(自身を除く): 118559980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 179, 250, 350, 358, 500, 625, 700, 716, 875, 895, 1250, 1253, 1750, 1790, 2500, 2506, 3125, 3500, 3580, 4375, 4475, 5012, 6250, 6265, 8750, 8950, 12500, 12530, 15625, 17500, 17900, 21875, 22375, 25060, 31250, 31325, 43750, 44750, 62500, 62650, 87500, 89500, 109375, 111875, 125300, 156625, 218750, 223750, 313250, 437500, 447500, 559375, 626500, 783125, 1118750, 1566250, 2237500, 2796875, 3132500, 3915625, 5593750, 7831250, 11187500, 15662500, 19578125, 39156250, 78312500]

約数ペア:

[(1, 78312500), (2, 39156250), (4, 19578125), (5, 15662500), (7, 11187500), (10, 7831250), (14, 5593750), (20, 3915625), (25, 3132500), (28, 2796875), (35, 2237500), (50, 1566250), (70, 1118750), (100, 783125), (125, 626500), (140, 559375), (175, 447500), (179, 437500), (250, 313250), (350, 223750), (358, 218750), (500, 156625), (625, 125300), (700, 111875), (716, 109375), (875, 89500), (895, 87500), (1250, 62650), (1253, 62500), (1750, 44750), (1790, 43750), (2500, 31325), (2506, 31250), (3125, 25060), (3500, 22375), (3580, 21875), (4375, 17900), (4475, 17500), (5012, 15625), (6250, 12530), (6265, 12500), (8750, 8950)]