1640343880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{5858371}}^1$

素因数の和:5858389

約数の個数: 32

約数和(自身を含む): 4218027840

約数和(自身を除く): 2577683960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 5858371, 11716742, 23433484, 29291855, 41008597, 46866968, 58583710, 82017194, 117167420, 164034388, 205042985, 234334840, 328068776, 410085970, 820171940, 1640343880]

約数ペア:

[(1, 1640343880), (2, 820171940), (4, 410085970), (5, 328068776), (7, 234334840), (8, 205042985), (10, 164034388), (14, 117167420), (20, 82017194), (28, 58583710), (35, 46866968), (40, 41008597), (56, 29291855), (70, 23433484), (140, 11716742), (280, 5858371)]