18990019040

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1771457}}^1$

素因数の和:1771539

約数の個数: 48

約数和(自身を含む): 45533556432

約数和(自身を除く): 26543537392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2680, 5360, 10720, 1771457, 3542914, 7085828, 8857285, 14171656, 17714570, 28343312, 35429140, 56686624, 70858280, 118687619, 141716560, 237375238, 283433120, 474750476, 593438095, 949500952, 1186876190, 1899001904, 2373752380, 3798003808, 4747504760, 9495009520, 18990019040]

約数ペア:

[(1, 18990019040), (2, 9495009520), (4, 4747504760), (5, 3798003808), (8, 2373752380), (10, 1899001904), (16, 1186876190), (20, 949500952), (32, 593438095), (40, 474750476), (67, 283433120), (80, 237375238), (134, 141716560), (160, 118687619), (268, 70858280), (335, 56686624), (536, 35429140), (670, 28343312), (1072, 17714570), (1340, 14171656), (2144, 8857285), (2680, 7085828), (5360, 3542914), (10720, 1771457)]