1689255

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 3130512

約数和(自身を除く): 1441257

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 97, 129, 135, 215, 291, 387, 405, 485, 645, 873, 1161, 1455, 1935, 2619, 3483, 4171, 4365, 5805, 7857, 12513, 13095, 17415, 20855, 37539, 39285, 62565, 112617, 187695, 337851, 563085, 1689255]

約数ペア:

[(1, 1689255), (3, 563085), (5, 337851), (9, 187695), (15, 112617), (27, 62565), (43, 39285), (45, 37539), (81, 20855), (97, 17415), (129, 13095), (135, 12513), (215, 7857), (291, 5805), (387, 4365), (405, 4171), (485, 3483), (645, 2619), (873, 1935), (1161, 1455)]