31397690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{643}}^1$

素因数の和:926

約数の個数: 32

約数和(自身を含む): 59814720

約数和(自身を除く): 28417030

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 257, 514, 643, 1285, 1286, 2570, 3215, 4883, 6430, 9766, 12217, 24415, 24434, 48830, 61085, 122170, 165251, 330502, 826255, 1652510, 3139769, 6279538, 15698845, 31397690]

約数ペア:

[(1, 31397690), (2, 15698845), (5, 6279538), (10, 3139769), (19, 1652510), (38, 826255), (95, 330502), (190, 165251), (257, 122170), (514, 61085), (643, 48830), (1285, 24434), (1286, 24415), (2570, 12217), (3215, 9766), (4883, 6430)]