21027840

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{37}}^2$

素因数の和:102

約数の個数: 132

約数和(自身を含む): 69123096

約数和(自身を除く): 48095256

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, 256, 296, 320, 370, 384, 444, 480, 512, 555, 592, 640, 740, 768, 888, 960, 1024, 1110, 1184, 1280, 1369, 1480, 1536, 1776, 1920, 2220, 2368, 2560, 2738, 2960, 3072, 3552, 3840, 4107, 4440, 4736, 5120, 5476, 5920, 6845, 7104, 7680, 8214, 8880, 9472, 10952, 11840, 13690, 14208, 15360, 16428, 17760, 18944, 20535, 21904, 23680, 27380, 28416, 32856, 35520, 37888, 41070, 43808, 47360, 54760, 56832, 65712, 71040, 82140, 87616, 94720, 109520, 113664, 131424, 142080, 164280, 175232, 189440, 219040, 262848, 284160, 328560, 350464, 438080, 525696, 568320, 657120, 700928, 876160, 1051392, 1314240, 1401856, 1752320, 2102784, 2628480, 3504640, 4205568, 5256960, 7009280, 10513920, 21027840]

約数ペア:

[(1, 21027840), (2, 10513920), (3, 7009280), (4, 5256960), (5, 4205568), (6, 3504640), (8, 2628480), (10, 2102784), (12, 1752320), (15, 1401856), (16, 1314240), (20, 1051392), (24, 876160), (30, 700928), (32, 657120), (37, 568320), (40, 525696), (48, 438080), (60, 350464), (64, 328560), (74, 284160), (80, 262848), (96, 219040), (111, 189440), (120, 175232), (128, 164280), (148, 142080), (160, 131424), (185, 113664), (192, 109520), (222, 94720), (240, 87616), (256, 82140), (296, 71040), (320, 65712), (370, 56832), (384, 54760), (444, 47360), (480, 43808), (512, 41070), (555, 37888), (592, 35520), (640, 32856), (740, 28416), (768, 27380), (888, 23680), (960, 21904), (1024, 20535), (1110, 18944), (1184, 17760), (1280, 16428), (1369, 15360), (1480, 14208), (1536, 13690), (1776, 11840), (1920, 10952), (2220, 9472), (2368, 8880), (2560, 8214), (2738, 7680), (2960, 7104), (3072, 6845), (3552, 5920), (3840, 5476), (4107, 5120), (4440, 4736)]