18287500

素因数分解:

$2^2\times 5^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1$

素因数の和:66

約数の個数: 144

約数和(自身を含む): 52496640

約数和(自身を除く): 34209140

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 25, 28, 35, 38, 44, 50, 55, 70, 76, 77, 95, 100, 110, 125, 133, 140, 154, 175, 190, 209, 220, 250, 266, 275, 308, 350, 380, 385, 418, 475, 500, 532, 550, 625, 665, 700, 770, 836, 875, 950, 1045, 1100, 1250, 1330, 1375, 1463, 1540, 1750, 1900, 1925, 2090, 2375, 2500, 2660, 2750, 2926, 3125, 3325, 3500, 3850, 4180, 4375, 4750, 5225, 5500, 5852, 6250, 6650, 6875, 7315, 7700, 8750, 9500, 9625, 10450, 11875, 12500, 13300, 13750, 14630, 16625, 17500, 19250, 20900, 21875, 23750, 26125, 27500, 29260, 33250, 34375, 36575, 38500, 43750, 47500, 48125, 52250, 59375, 66500, 68750, 73150, 83125, 87500, 96250, 104500, 118750, 130625, 137500, 146300, 166250, 182875, 192500, 237500, 240625, 261250, 332500, 365750, 415625, 481250, 522500, 653125, 731500, 831250, 914375, 962500, 1306250, 1662500, 1828750, 2612500, 3657500, 4571875, 9143750, 18287500]

約数ペア:

[(1, 18287500), (2, 9143750), (4, 4571875), (5, 3657500), (7, 2612500), (10, 1828750), (11, 1662500), (14, 1306250), (19, 962500), (20, 914375), (22, 831250), (25, 731500), (28, 653125), (35, 522500), (38, 481250), (44, 415625), (50, 365750), (55, 332500), (70, 261250), (76, 240625), (77, 237500), (95, 192500), (100, 182875), (110, 166250), (125, 146300), (133, 137500), (140, 130625), (154, 118750), (175, 104500), (190, 96250), (209, 87500), (220, 83125), (250, 73150), (266, 68750), (275, 66500), (308, 59375), (350, 52250), (380, 48125), (385, 47500), (418, 43750), (475, 38500), (500, 36575), (532, 34375), (550, 33250), (625, 29260), (665, 27500), (700, 26125), (770, 23750), (836, 21875), (875, 20900), (950, 19250), (1045, 17500), (1100, 16625), (1250, 14630), (1330, 13750), (1375, 13300), (1463, 12500), (1540, 11875), (1750, 10450), (1900, 9625), (1925, 9500), (2090, 8750), (2375, 7700), (2500, 7315), (2660, 6875), (2750, 6650), (2926, 6250), (3125, 5852), (3325, 5500), (3500, 5225), (3850, 4750), (4180, 4375)]