201621640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1783}}^1$

素因数の和:2062

約数の個数: 64

約数和(自身を含む): 497093760

約数和(自身を除く): 295472120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 257, 440, 514, 1028, 1285, 1783, 2056, 2570, 2827, 3566, 5140, 5654, 7132, 8915, 10280, 11308, 14135, 14264, 17830, 19613, 22616, 28270, 35660, 39226, 56540, 71320, 78452, 98065, 113080, 156904, 196130, 392260, 458231, 784520, 916462, 1832924, 2291155, 3665848, 4582310, 5040541, 9164620, 10081082, 18329240, 20162164, 25202705, 40324328, 50405410, 100810820, 201621640]

約数ペア:

[(1, 201621640), (2, 100810820), (4, 50405410), (5, 40324328), (8, 25202705), (10, 20162164), (11, 18329240), (20, 10081082), (22, 9164620), (40, 5040541), (44, 4582310), (55, 3665848), (88, 2291155), (110, 1832924), (220, 916462), (257, 784520), (440, 458231), (514, 392260), (1028, 196130), (1285, 156904), (1783, 113080), (2056, 98065), (2570, 78452), (2827, 71320), (3566, 56540), (5140, 39226), (5654, 35660), (7132, 28270), (8915, 22616), (10280, 19613), (11308, 17830), (14135, 14264)]