256409968

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1723}}^1$

素因数の和:1933

約数の個数: 40

約数和(自身を含む): 507931776

約数和(自身を除く): 251521808

約数列:

[1, 2, 4, 8, 16, 71, 131, 142, 262, 284, 524, 568, 1048, 1136, 1723, 2096, 3446, 6892, 9301, 13784, 18602, 27568, 37204, 74408, 122333, 148816, 225713, 244666, 451426, 489332, 902852, 978664, 1805704, 1957328, 3611408, 16025623, 32051246, 64102492, 128204984, 256409968]

約数ペア:

[(1, 256409968), (2, 128204984), (4, 64102492), (8, 32051246), (16, 16025623), (71, 3611408), (131, 1957328), (142, 1805704), (262, 978664), (284, 902852), (524, 489332), (568, 451426), (1048, 244666), (1136, 225713), (1723, 148816), (2096, 122333), (3446, 74408), (6892, 37204), (9301, 27568), (13784, 18602)]