1271465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:680

約数の個数: 16

約数和(自身を含む): 1698816

約数和(自身を除く): 427351

約数列:

[1, 5, 13, 31, 65, 155, 403, 631, 2015, 3155, 8203, 19561, 41015, 97805, 254293, 1271465]

約数ペア:

[(1, 1271465), (5, 254293), (13, 97805), (31, 41015), (65, 19561), (155, 8203), (403, 3155), (631, 2015)]