20091504

素因数分解:

$2^4\times 3^1\times {\mathrm{641}}^1\times {\mathrm{653}}^1$

素因数の和:1305

約数の個数: 40

約数和(自身を含む): 52063632

約数和(自身を除く): 31972128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 641, 653, 1282, 1306, 1923, 1959, 2564, 2612, 3846, 3918, 5128, 5224, 7692, 7836, 10256, 10448, 15384, 15672, 30768, 31344, 418573, 837146, 1255719, 1674292, 2511438, 3348584, 5022876, 6697168, 10045752, 20091504]

約数ペア:

[(1, 20091504), (2, 10045752), (3, 6697168), (4, 5022876), (6, 3348584), (8, 2511438), (12, 1674292), (16, 1255719), (24, 837146), (48, 418573), (641, 31344), (653, 30768), (1282, 15672), (1306, 15384), (1923, 10448), (1959, 10256), (2564, 7836), (2612, 7692), (3846, 5224), (3918, 5128)]