19459660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{449}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 44906400

約数和(自身を除く): 25446740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 449, 788, 898, 985, 1796, 1970, 2167, 2245, 3940, 4334, 4490, 4939, 8668, 8980, 9878, 10835, 19756, 21670, 24695, 43340, 49390, 88453, 98780, 176906, 353812, 442265, 884530, 972983, 1769060, 1945966, 3891932, 4864915, 9729830, 19459660]

約数ペア:

[(1, 19459660), (2, 9729830), (4, 4864915), (5, 3891932), (10, 1945966), (11, 1769060), (20, 972983), (22, 884530), (44, 442265), (55, 353812), (110, 176906), (197, 98780), (220, 88453), (394, 49390), (449, 43340), (788, 24695), (898, 21670), (985, 19756), (1796, 10835), (1970, 9878), (2167, 8980), (2245, 8668), (3940, 4939), (4334, 4490)]