25161640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1231}}^1$

素因数の和:1322

約数の個数: 64

約数和(自身を含む): 65640960

約数和(自身を除く): 40479320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 1022, 1231, 1460, 2044, 2462, 2555, 2920, 4088, 4924, 5110, 6155, 8617, 9848, 10220, 12310, 17234, 20440, 24620, 34468, 43085, 49240, 68936, 86170, 89863, 172340, 179726, 344680, 359452, 449315, 629041, 718904, 898630, 1258082, 1797260, 2516164, 3145205, 3594520, 5032328, 6290410, 12580820, 25161640]

約数ペア:

[(1, 25161640), (2, 12580820), (4, 6290410), (5, 5032328), (7, 3594520), (8, 3145205), (10, 2516164), (14, 1797260), (20, 1258082), (28, 898630), (35, 718904), (40, 629041), (56, 449315), (70, 359452), (73, 344680), (140, 179726), (146, 172340), (280, 89863), (292, 86170), (365, 68936), (511, 49240), (584, 43085), (730, 34468), (1022, 24620), (1231, 20440), (1460, 17234), (2044, 12310), (2462, 10220), (2555, 9848), (2920, 8617), (4088, 6155), (4924, 5110)]