8312500

素因数分解:

$2^2\times 5^6\times 7^1\times {\mathrm{19}}^1$

素因数の和:60

約数の個数: 84

約数和(自身を含む): 21874720

約数和(自身を除く): 13562220

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 95, 100, 125, 133, 140, 175, 190, 250, 266, 350, 380, 475, 500, 532, 625, 665, 700, 875, 950, 1250, 1330, 1750, 1900, 2375, 2500, 2660, 3125, 3325, 3500, 4375, 4750, 6250, 6650, 8750, 9500, 11875, 12500, 13300, 15625, 16625, 17500, 21875, 23750, 31250, 33250, 43750, 47500, 59375, 62500, 66500, 83125, 87500, 109375, 118750, 166250, 218750, 237500, 296875, 332500, 415625, 437500, 593750, 831250, 1187500, 1662500, 2078125, 4156250, 8312500]

約数ペア:

[(1, 8312500), (2, 4156250), (4, 2078125), (5, 1662500), (7, 1187500), (10, 831250), (14, 593750), (19, 437500), (20, 415625), (25, 332500), (28, 296875), (35, 237500), (38, 218750), (50, 166250), (70, 118750), (76, 109375), (95, 87500), (100, 83125), (125, 66500), (133, 62500), (140, 59375), (175, 47500), (190, 43750), (250, 33250), (266, 31250), (350, 23750), (380, 21875), (475, 17500), (500, 16625), (532, 15625), (625, 13300), (665, 12500), (700, 11875), (875, 9500), (950, 8750), (1250, 6650), (1330, 6250), (1750, 4750), (1900, 4375), (2375, 3500), (2500, 3325), (2660, 3125)]