1640376426

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{568391}}^1$

素因数の和:568446

約数の個数: 32

約数和(自身を含む): 3628614528

約数和(自身を除く): 1988238102

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 222, 481, 962, 1443, 2886, 568391, 1136782, 1705173, 3410346, 7389083, 14778166, 21030467, 22167249, 42060934, 44334498, 63091401, 126182802, 273396071, 546792142, 820188213, 1640376426]

約数ペア:

[(1, 1640376426), (2, 820188213), (3, 546792142), (6, 273396071), (13, 126182802), (26, 63091401), (37, 44334498), (39, 42060934), (74, 22167249), (78, 21030467), (111, 14778166), (222, 7389083), (481, 3410346), (962, 1705173), (1443, 1136782), (2886, 568391)]