65312500

素因数分解:

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

素因数の和:69

約数の個数: 96

約数和(自身を含む): 164062080

約数和(自身を除く): 98749580

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 125, 190, 209, 220, 250, 275, 380, 418, 475, 500, 550, 625, 836, 950, 1045, 1100, 1250, 1375, 1900, 2090, 2375, 2500, 2750, 3125, 4180, 4750, 5225, 5500, 6250, 6875, 9500, 10450, 11875, 12500, 13750, 15625, 20900, 23750, 26125, 27500, 31250, 34375, 47500, 52250, 59375, 62500, 68750, 78125, 104500, 118750, 130625, 137500, 156250, 171875, 237500, 261250, 296875, 312500, 343750, 522500, 593750, 653125, 687500, 859375, 1187500, 1306250, 1484375, 1718750, 2612500, 2968750, 3265625, 3437500, 5937500, 6531250, 13062500, 16328125, 32656250, 65312500]

約数ペア:

[(1, 65312500), (2, 32656250), (4, 16328125), (5, 13062500), (10, 6531250), (11, 5937500), (19, 3437500), (20, 3265625), (22, 2968750), (25, 2612500), (38, 1718750), (44, 1484375), (50, 1306250), (55, 1187500), (76, 859375), (95, 687500), (100, 653125), (110, 593750), (125, 522500), (190, 343750), (209, 312500), (220, 296875), (250, 261250), (275, 237500), (380, 171875), (418, 156250), (475, 137500), (500, 130625), (550, 118750), (625, 104500), (836, 78125), (950, 68750), (1045, 62500), (1100, 59375), (1250, 52250), (1375, 47500), (1900, 34375), (2090, 31250), (2375, 27500), (2500, 26125), (2750, 23750), (3125, 20900), (4180, 15625), (4750, 13750), (5225, 12500), (5500, 11875), (6250, 10450), (6875, 9500)]