165274640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66643}}^1$

素因数の和:66687

約数の個数: 40

約数和(自身を含む): 396665088

約数和(自身を除く): 231390448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 66643, 133286, 266572, 333215, 533144, 666430, 1066288, 1332860, 2065933, 2665720, 4131866, 5331440, 8263732, 10329665, 16527464, 20659330, 33054928, 41318660, 82637320, 165274640]

約数ペア:

[(1, 165274640), (2, 82637320), (4, 41318660), (5, 33054928), (8, 20659330), (10, 16527464), (16, 10329665), (20, 8263732), (31, 5331440), (40, 4131866), (62, 2665720), (80, 2065933), (124, 1332860), (155, 1066288), (248, 666430), (310, 533144), (496, 333215), (620, 266572), (1240, 133286), (2480, 66643)]