666566685

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{290443}}^1$

素因数の和:290474

約数の個数: 32

約数和(自身を含む): 1254718080

約数和(自身を除く): 588151395

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 290443, 871329, 1452215, 2613987, 4356645, 4937531, 7841961, 13069935, 14812593, 24687655, 39209805, 44437779, 74062965, 133313337, 222188895, 666566685]

約数ペア:

[(1, 666566685), (3, 222188895), (5, 133313337), (9, 74062965), (15, 44437779), (17, 39209805), (27, 24687655), (45, 14812593), (51, 13069935), (85, 7841961), (135, 4937531), (153, 4356645), (255, 2613987), (459, 1452215), (765, 871329), (2295, 290443)]