2080721385

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{217081}}^1$

素因数の和:217166

約数の個数: 32

約数和(自身を含む): 3751176960

約数和(自身を除く): 1670455575

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 135, 213, 355, 639, 1065, 1917, 3195, 9585, 217081, 651243, 1085405, 1953729, 3256215, 5861187, 9768645, 15412751, 29305935, 46238253, 77063755, 138714759, 231191265, 416144277, 693573795, 2080721385]

約数ペア:

[(1, 2080721385), (3, 693573795), (5, 416144277), (9, 231191265), (15, 138714759), (27, 77063755), (45, 46238253), (71, 29305935), (135, 15412751), (213, 9768645), (355, 5861187), (639, 3256215), (1065, 1953729), (1917, 1085405), (3195, 651243), (9585, 217081)]