278670470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{69149}}^1$

素因数の和:69200

約数の個数: 32

約数和(自身を含む): 557625600

約数和(自身を除く): 278955130

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 69149, 138298, 345745, 691490, 898937, 1797874, 2143619, 4287238, 4494685, 8989370, 10718095, 21436190, 27867047, 55734094, 139335235, 278670470]

約数ペア:

[(1, 278670470), (2, 139335235), (5, 55734094), (10, 27867047), (13, 21436190), (26, 10718095), (31, 8989370), (62, 4494685), (65, 4287238), (130, 2143619), (155, 1797874), (310, 898937), (403, 691490), (806, 345745), (2015, 138298), (4030, 69149)]