21175680

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:332

約数の個数: 128

約数和(自身を含む): 69400800

約数和(自身を除く): 48225120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 205, 240, 246, 269, 320, 328, 384, 410, 480, 492, 538, 615, 640, 656, 807, 820, 960, 984, 1076, 1230, 1312, 1345, 1614, 1640, 1920, 1968, 2152, 2460, 2624, 2690, 3228, 3280, 3936, 4035, 4304, 4920, 5248, 5380, 6456, 6560, 7872, 8070, 8608, 9840, 10760, 11029, 12912, 13120, 15744, 16140, 17216, 19680, 21520, 22058, 25824, 26240, 32280, 33087, 34432, 39360, 43040, 44116, 51648, 55145, 64560, 66174, 78720, 86080, 88232, 103296, 110290, 129120, 132348, 165435, 172160, 176464, 220580, 258240, 264696, 330870, 352928, 441160, 516480, 529392, 661740, 705856, 882320, 1058784, 1323480, 1411712, 1764640, 2117568, 2646960, 3529280, 4235136, 5293920, 7058560, 10587840, 21175680]

約数ペア:

[(1, 21175680), (2, 10587840), (3, 7058560), (4, 5293920), (5, 4235136), (6, 3529280), (8, 2646960), (10, 2117568), (12, 1764640), (15, 1411712), (16, 1323480), (20, 1058784), (24, 882320), (30, 705856), (32, 661740), (40, 529392), (41, 516480), (48, 441160), (60, 352928), (64, 330870), (80, 264696), (82, 258240), (96, 220580), (120, 176464), (123, 172160), (128, 165435), (160, 132348), (164, 129120), (192, 110290), (205, 103296), (240, 88232), (246, 86080), (269, 78720), (320, 66174), (328, 64560), (384, 55145), (410, 51648), (480, 44116), (492, 43040), (538, 39360), (615, 34432), (640, 33087), (656, 32280), (807, 26240), (820, 25824), (960, 22058), (984, 21520), (1076, 19680), (1230, 17216), (1312, 16140), (1345, 15744), (1614, 13120), (1640, 12912), (1920, 11029), (1968, 10760), (2152, 9840), (2460, 8608), (2624, 8070), (2690, 7872), (3228, 6560), (3280, 6456), (3936, 5380), (4035, 5248), (4304, 4920)]