42980905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 59781888

約数和(自身を除く): 16800983

約数列:

[1, 5, 11, 23, 55, 61, 115, 253, 305, 557, 671, 1265, 1403, 2785, 3355, 6127, 7015, 12811, 15433, 30635, 33977, 64055, 77165, 140921, 169885, 373747, 704605, 781471, 1868735, 3907355, 8596181, 42980905]

約数ペア:

[(1, 42980905), (5, 8596181), (11, 3907355), (23, 1868735), (55, 781471), (61, 704605), (115, 373747), (253, 169885), (305, 140921), (557, 77165), (671, 64055), (1265, 33977), (1403, 30635), (2785, 15433), (3355, 12811), (6127, 7015)]