81241600

素因数分解:

$2^9\times 5^2\times {\mathrm{11}}^1\times {\mathrm{577}}^1$

素因数の和:616

約数の個数: 120

約数和(自身を含む): 219961368

約数和(自身を除く): 138719768

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 128, 160, 176, 200, 220, 256, 275, 320, 352, 400, 440, 512, 550, 577, 640, 704, 800, 880, 1100, 1154, 1280, 1408, 1600, 1760, 2200, 2308, 2560, 2816, 2885, 3200, 3520, 4400, 4616, 5632, 5770, 6347, 6400, 7040, 8800, 9232, 11540, 12694, 12800, 14080, 14425, 17600, 18464, 23080, 25388, 28160, 28850, 31735, 35200, 36928, 46160, 50776, 57700, 63470, 70400, 73856, 92320, 101552, 115400, 126940, 140800, 147712, 158675, 184640, 203104, 230800, 253880, 295424, 317350, 369280, 406208, 461600, 507760, 634700, 738560, 812416, 923200, 1015520, 1269400, 1477120, 1624832, 1846400, 2031040, 2538800, 3249664, 3692800, 4062080, 5077600, 7385600, 8124160, 10155200, 16248320, 20310400, 40620800, 81241600]

約数ペア:

[(1, 81241600), (2, 40620800), (4, 20310400), (5, 16248320), (8, 10155200), (10, 8124160), (11, 7385600), (16, 5077600), (20, 4062080), (22, 3692800), (25, 3249664), (32, 2538800), (40, 2031040), (44, 1846400), (50, 1624832), (55, 1477120), (64, 1269400), (80, 1015520), (88, 923200), (100, 812416), (110, 738560), (128, 634700), (160, 507760), (176, 461600), (200, 406208), (220, 369280), (256, 317350), (275, 295424), (320, 253880), (352, 230800), (400, 203104), (440, 184640), (512, 158675), (550, 147712), (577, 140800), (640, 126940), (704, 115400), (800, 101552), (880, 92320), (1100, 73856), (1154, 70400), (1280, 63470), (1408, 57700), (1600, 50776), (1760, 46160), (2200, 36928), (2308, 35200), (2560, 31735), (2816, 28850), (2885, 28160), (3200, 25388), (3520, 23080), (4400, 18464), (4616, 17600), (5632, 14425), (5770, 14080), (6347, 12800), (6400, 12694), (7040, 11540), (8800, 9232)]