28012500

素因数分解:

$2^2\times 3^3\times 5^5\times {\mathrm{83}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 91869120

約数和(自身を除く): 63856620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 83, 90, 100, 108, 125, 135, 150, 166, 180, 225, 249, 250, 270, 300, 332, 375, 415, 450, 498, 500, 540, 625, 675, 747, 750, 830, 900, 996, 1125, 1245, 1250, 1350, 1494, 1500, 1660, 1875, 2075, 2241, 2250, 2490, 2500, 2700, 2988, 3125, 3375, 3735, 3750, 4150, 4482, 4500, 4980, 5625, 6225, 6250, 6750, 7470, 7500, 8300, 8964, 9375, 10375, 11205, 11250, 12450, 12500, 13500, 14940, 16875, 18675, 18750, 20750, 22410, 22500, 24900, 28125, 31125, 33750, 37350, 37500, 41500, 44820, 51875, 56025, 56250, 62250, 67500, 74700, 84375, 93375, 103750, 112050, 112500, 124500, 155625, 168750, 186750, 207500, 224100, 259375, 280125, 311250, 337500, 373500, 466875, 518750, 560250, 622500, 778125, 933750, 1037500, 1120500, 1400625, 1556250, 1867500, 2334375, 2801250, 3112500, 4668750, 5602500, 7003125, 9337500, 14006250, 28012500]

約数ペア:

[(1, 28012500), (2, 14006250), (3, 9337500), (4, 7003125), (5, 5602500), (6, 4668750), (9, 3112500), (10, 2801250), (12, 2334375), (15, 1867500), (18, 1556250), (20, 1400625), (25, 1120500), (27, 1037500), (30, 933750), (36, 778125), (45, 622500), (50, 560250), (54, 518750), (60, 466875), (75, 373500), (83, 337500), (90, 311250), (100, 280125), (108, 259375), (125, 224100), (135, 207500), (150, 186750), (166, 168750), (180, 155625), (225, 124500), (249, 112500), (250, 112050), (270, 103750), (300, 93375), (332, 84375), (375, 74700), (415, 67500), (450, 62250), (498, 56250), (500, 56025), (540, 51875), (625, 44820), (675, 41500), (747, 37500), (750, 37350), (830, 33750), (900, 31125), (996, 28125), (1125, 24900), (1245, 22500), (1250, 22410), (1350, 20750), (1494, 18750), (1500, 18675), (1660, 16875), (1875, 14940), (2075, 13500), (2241, 12500), (2250, 12450), (2490, 11250), (2500, 11205), (2700, 10375), (2988, 9375), (3125, 8964), (3375, 8300), (3735, 7500), (3750, 7470), (4150, 6750), (4482, 6250), (4500, 6225), (4980, 5625)]