64999000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:362

約数の個数: 128

約数和(自身を含む): 175219200

約数和(自身を除く): 110220200

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 25, 38, 40, 44, 50, 55, 76, 88, 95, 100, 110, 125, 152, 190, 200, 209, 220, 250, 275, 311, 380, 418, 440, 475, 500, 550, 622, 760, 836, 950, 1000, 1045, 1100, 1244, 1375, 1555, 1672, 1900, 2090, 2200, 2375, 2488, 2750, 3110, 3421, 3800, 4180, 4750, 5225, 5500, 5909, 6220, 6842, 7775, 8360, 9500, 10450, 11000, 11818, 12440, 13684, 15550, 17105, 19000, 20900, 23636, 26125, 27368, 29545, 31100, 34210, 38875, 41800, 47272, 52250, 59090, 62200, 64999, 68420, 77750, 85525, 104500, 118180, 129998, 136840, 147725, 155500, 171050, 209000, 236360, 259996, 295450, 311000, 324995, 342100, 427625, 519992, 590900, 649990, 684200, 738625, 855250, 1181800, 1299980, 1477250, 1624975, 1710500, 2599960, 2954500, 3249950, 3421000, 5909000, 6499900, 8124875, 12999800, 16249750, 32499500, 64999000]

約数ペア:

[(1, 64999000), (2, 32499500), (4, 16249750), (5, 12999800), (8, 8124875), (10, 6499900), (11, 5909000), (19, 3421000), (20, 3249950), (22, 2954500), (25, 2599960), (38, 1710500), (40, 1624975), (44, 1477250), (50, 1299980), (55, 1181800), (76, 855250), (88, 738625), (95, 684200), (100, 649990), (110, 590900), (125, 519992), (152, 427625), (190, 342100), (200, 324995), (209, 311000), (220, 295450), (250, 259996), (275, 236360), (311, 209000), (380, 171050), (418, 155500), (440, 147725), (475, 136840), (500, 129998), (550, 118180), (622, 104500), (760, 85525), (836, 77750), (950, 68420), (1000, 64999), (1045, 62200), (1100, 59090), (1244, 52250), (1375, 47272), (1555, 41800), (1672, 38875), (1900, 34210), (2090, 31100), (2200, 29545), (2375, 27368), (2488, 26125), (2750, 23636), (3110, 20900), (3421, 19000), (3800, 17105), (4180, 15550), (4750, 13684), (5225, 12440), (5500, 11818), (5909, 11000), (6220, 10450), (6842, 9500), (7775, 8360)]