19745845

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1291}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 29767680

約数和(自身を除く): 10021835

約数列:

[1, 5, 7, 19, 23, 35, 95, 115, 133, 161, 437, 665, 805, 1291, 2185, 3059, 6455, 9037, 15295, 24529, 29693, 45185, 122645, 148465, 171703, 207851, 564167, 858515, 1039255, 2820835, 3949169, 19745845]

約数ペア:

[(1, 19745845), (5, 3949169), (7, 2820835), (19, 1039255), (23, 858515), (35, 564167), (95, 207851), (115, 171703), (133, 148465), (161, 122645), (437, 45185), (665, 29693), (805, 24529), (1291, 15295), (2185, 9037), (3059, 6455)]