6665620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{827}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 15579648

約数和(自身を除く): 8914028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 827, 1612, 1654, 2015, 3308, 4030, 4135, 8060, 8270, 10751, 16540, 21502, 25637, 43004, 51274, 53755, 102548, 107510, 128185, 215020, 256370, 333281, 512740, 666562, 1333124, 1666405, 3332810, 6665620]

約数ペア:

[(1, 6665620), (2, 3332810), (4, 1666405), (5, 1333124), (10, 666562), (13, 512740), (20, 333281), (26, 256370), (31, 215020), (52, 128185), (62, 107510), (65, 102548), (124, 53755), (130, 51274), (155, 43004), (260, 25637), (310, 21502), (403, 16540), (620, 10751), (806, 8270), (827, 8060), (1612, 4135), (1654, 4030), (2015, 3308)]