20622720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:512

約数の個数: 128

約数和(自身を含む): 68739840

約数和(自身を除く): 48117120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 128, 138, 160, 184, 192, 230, 240, 276, 320, 345, 368, 384, 460, 467, 480, 552, 640, 690, 736, 920, 934, 960, 1104, 1380, 1401, 1472, 1840, 1868, 1920, 2208, 2335, 2760, 2802, 2944, 3680, 3736, 4416, 4670, 5520, 5604, 7005, 7360, 7472, 8832, 9340, 10741, 11040, 11208, 14010, 14720, 14944, 18680, 21482, 22080, 22416, 28020, 29888, 32223, 37360, 42964, 44160, 44832, 53705, 56040, 59776, 64446, 74720, 85928, 89664, 107410, 112080, 128892, 149440, 161115, 171856, 179328, 214820, 224160, 257784, 298880, 322230, 343712, 429640, 448320, 515568, 644460, 687424, 859280, 896640, 1031136, 1288920, 1374848, 1718560, 2062272, 2577840, 3437120, 4124544, 5155680, 6874240, 10311360, 20622720]

約数ペア:

[(1, 20622720), (2, 10311360), (3, 6874240), (4, 5155680), (5, 4124544), (6, 3437120), (8, 2577840), (10, 2062272), (12, 1718560), (15, 1374848), (16, 1288920), (20, 1031136), (23, 896640), (24, 859280), (30, 687424), (32, 644460), (40, 515568), (46, 448320), (48, 429640), (60, 343712), (64, 322230), (69, 298880), (80, 257784), (92, 224160), (96, 214820), (115, 179328), (120, 171856), (128, 161115), (138, 149440), (160, 128892), (184, 112080), (192, 107410), (230, 89664), (240, 85928), (276, 74720), (320, 64446), (345, 59776), (368, 56040), (384, 53705), (460, 44832), (467, 44160), (480, 42964), (552, 37360), (640, 32223), (690, 29888), (736, 28020), (920, 22416), (934, 22080), (960, 21482), (1104, 18680), (1380, 14944), (1401, 14720), (1472, 14010), (1840, 11208), (1868, 11040), (1920, 10741), (2208, 9340), (2335, 8832), (2760, 7472), (2802, 7360), (2944, 7005), (3680, 5604), (3736, 5520), (4416, 4670)]