81105840

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37549}}^1$

素因数の和:37571

約数の個数: 80

約数和(自身を含む): 279372000

約数和(自身を除く): 198266160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 37549, 75098, 112647, 150196, 187745, 225294, 300392, 337941, 375490, 450588, 563235, 600784, 675882, 750980, 901176, 1013823, 1126470, 1351764, 1501960, 1689705, 1802352, 2027646, 2252940, 2703528, 3003920, 3379410, 4055292, 4505880, 5069115, 5407056, 6758820, 8110584, 9011760, 10138230, 13517640, 16221168, 20276460, 27035280, 40552920, 81105840]

約数ペア:

[(1, 81105840), (2, 40552920), (3, 27035280), (4, 20276460), (5, 16221168), (6, 13517640), (8, 10138230), (9, 9011760), (10, 8110584), (12, 6758820), (15, 5407056), (16, 5069115), (18, 4505880), (20, 4055292), (24, 3379410), (27, 3003920), (30, 2703528), (36, 2252940), (40, 2027646), (45, 1802352), (48, 1689705), (54, 1501960), (60, 1351764), (72, 1126470), (80, 1013823), (90, 901176), (108, 750980), (120, 675882), (135, 600784), (144, 563235), (180, 450588), (216, 375490), (240, 337941), (270, 300392), (360, 225294), (432, 187745), (540, 150196), (720, 112647), (1080, 75098), (2160, 37549)]