28987970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23957}}^1$

素因数の和:23986

約数の個数: 24

約数和(自身を含む): 57355452

約数和(自身を除く): 28367482

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 23957, 47914, 119785, 239570, 263527, 527054, 1317635, 2635270, 2898797, 5797594, 14493985, 28987970]

約数ペア:

[(1, 28987970), (2, 14493985), (5, 5797594), (10, 2898797), (11, 2635270), (22, 1317635), (55, 527054), (110, 263527), (121, 239570), (242, 119785), (605, 47914), (1210, 23957)]