1388996815

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{49369}}^1$

素因数の和:49722

約数の個数: 16

約数和(自身を含む): 1770210720

約数和(自身を除く): 381213905

約数列:

[1, 5, 17, 85, 331, 1655, 5627, 28135, 49369, 246845, 839273, 4196365, 16341139, 81705695, 277799363, 1388996815]

約数ペア:

[(1, 1388996815), (5, 277799363), (17, 81705695), (85, 16341139), (331, 4196365), (1655, 839273), (5627, 246845), (28135, 49369)]