1490490240

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{20981}}^1$

素因数の和:21040

約数の個数: 128

約数和(自身を含む): 4879573920

約数和(自身を除く): 3389083680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 128, 148, 160, 185, 192, 222, 240, 296, 320, 370, 384, 444, 480, 555, 592, 640, 740, 888, 960, 1110, 1184, 1480, 1776, 1920, 2220, 2368, 2960, 3552, 4440, 4736, 5920, 7104, 8880, 11840, 14208, 17760, 20981, 23680, 35520, 41962, 62943, 71040, 83924, 104905, 125886, 167848, 209810, 251772, 314715, 335696, 419620, 503544, 629430, 671392, 776297, 839240, 1007088, 1258860, 1342784, 1552594, 1678480, 2014176, 2328891, 2517720, 2685568, 3105188, 3356960, 3881485, 4028352, 4657782, 5035440, 6210376, 6713920, 7762970, 8056704, 9315564, 10070880, 11644455, 12420752, 13427840, 15525940, 18631128, 20141760, 23288910, 24841504, 31051880, 37262256, 40283520, 46577820, 49683008, 62103760, 74524512, 93155640, 99366016, 124207520, 149049024, 186311280, 248415040, 298098048, 372622560, 496830080, 745245120, 1490490240]

約数ペア:

[(1, 1490490240), (2, 745245120), (3, 496830080), (4, 372622560), (5, 298098048), (6, 248415040), (8, 186311280), (10, 149049024), (12, 124207520), (15, 99366016), (16, 93155640), (20, 74524512), (24, 62103760), (30, 49683008), (32, 46577820), (37, 40283520), (40, 37262256), (48, 31051880), (60, 24841504), (64, 23288910), (74, 20141760), (80, 18631128), (96, 15525940), (111, 13427840), (120, 12420752), (128, 11644455), (148, 10070880), (160, 9315564), (185, 8056704), (192, 7762970), (222, 6713920), (240, 6210376), (296, 5035440), (320, 4657782), (370, 4028352), (384, 3881485), (444, 3356960), (480, 3105188), (555, 2685568), (592, 2517720), (640, 2328891), (740, 2014176), (888, 1678480), (960, 1552594), (1110, 1342784), (1184, 1258860), (1480, 1007088), (1776, 839240), (1920, 776297), (2220, 671392), (2368, 629430), (2960, 503544), (3552, 419620), (4440, 335696), (4736, 314715), (5920, 251772), (7104, 209810), (8880, 167848), (11840, 125886), (14208, 104905), (17760, 83924), (20981, 71040), (23680, 62943), (35520, 41962)]