1291235405

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{683}}^1\times {\mathrm{12197}}^1$

素因数の和:12916

約数の個数: 16

約数和(自身を含む): 1601938944

約数和(自身を除く): 310703539

約数列:

[1, 5, 31, 155, 683, 3415, 12197, 21173, 60985, 105865, 378107, 1890535, 8330551, 41652755, 258247081, 1291235405]

約数ペア:

[(1, 1291235405), (5, 258247081), (31, 41652755), (155, 8330551), (683, 1890535), (3415, 378107), (12197, 105865), (21173, 60985)]