840255

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 1505280

約数和(自身を除く): 665025

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 139, 155, 195, 403, 417, 465, 695, 1209, 1807, 2015, 2085, 4309, 5421, 6045, 9035, 12927, 21545, 27105, 56017, 64635, 168051, 280085, 840255]

約数ペア:

[(1, 840255), (3, 280085), (5, 168051), (13, 64635), (15, 56017), (31, 27105), (39, 21545), (65, 12927), (93, 9035), (139, 6045), (155, 5421), (195, 4309), (403, 2085), (417, 2015), (465, 1807), (695, 1209)]