331311990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{256831}}^1$

素因数の和:256884

約数の個数: 32

約数和(自身を含む): 813643776

約数和(自身を除く): 482331786

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 256831, 513662, 770493, 1284155, 1540986, 2568310, 3852465, 7704930, 11043733, 22087466, 33131199, 55218665, 66262398, 110437330, 165655995, 331311990]

約数ペア:

[(1, 331311990), (2, 165655995), (3, 110437330), (5, 66262398), (6, 55218665), (10, 33131199), (15, 22087466), (30, 11043733), (43, 7704930), (86, 3852465), (129, 2568310), (215, 1540986), (258, 1284155), (430, 770493), (645, 513662), (1290, 256831)]