290400351

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{691}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 417857280

約数和(自身を除く): 127456929

約数列:

[1, 3, 19, 57, 73, 101, 219, 303, 691, 1387, 1919, 2073, 4161, 5757, 7373, 13129, 22119, 39387, 50443, 69791, 140087, 151329, 209373, 420261, 958417, 1326029, 2875251, 3978087, 5094743, 15284229, 96800117, 290400351]

約数ペア:

[(1, 290400351), (3, 96800117), (19, 15284229), (57, 5094743), (73, 3978087), (101, 2875251), (219, 1326029), (303, 958417), (691, 420261), (1387, 209373), (1919, 151329), (2073, 140087), (4161, 69791), (5757, 50443), (7373, 39387), (13129, 22119)]