28261970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23357}}^1$

素因数の和:23386

約数の個数: 24

約数和(自身を含む): 55919052

約数和(自身を除く): 27657082

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 23357, 46714, 116785, 233570, 256927, 513854, 1284635, 2569270, 2826197, 5652394, 14130985, 28261970]

約数ペア:

[(1, 28261970), (2, 14130985), (5, 5652394), (10, 2826197), (11, 2569270), (22, 1284635), (55, 513854), (110, 256927), (121, 233570), (242, 116785), (605, 46714), (1210, 23357)]