161888540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{1511}}^1$

素因数の和:2018

約数の個数: 48

約数和(自身を含む): 371879424

約数和(自身を除く): 209990884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 487, 974, 1511, 1948, 2435, 3022, 4870, 5357, 6044, 7555, 9740, 10714, 15110, 16621, 21428, 26785, 30220, 33242, 53570, 66484, 83105, 107140, 166210, 332420, 735857, 1471714, 2943428, 3679285, 7358570, 8094427, 14717140, 16188854, 32377708, 40472135, 80944270, 161888540]

約数ペア:

[(1, 161888540), (2, 80944270), (4, 40472135), (5, 32377708), (10, 16188854), (11, 14717140), (20, 8094427), (22, 7358570), (44, 3679285), (55, 2943428), (110, 1471714), (220, 735857), (487, 332420), (974, 166210), (1511, 107140), (1948, 83105), (2435, 66484), (3022, 53570), (4870, 33242), (5357, 30220), (6044, 26785), (7555, 21428), (9740, 16621), (10714, 15110)]