42731390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1279}}^1$

素因数の和:1556

約数の個数: 32

約数和(自身を含む): 83220480

約数和(自身を除く): 40489090

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 257, 514, 1279, 1285, 2558, 2570, 3341, 6395, 6682, 12790, 16627, 16705, 33254, 33410, 83135, 166270, 328703, 657406, 1643515, 3287030, 4273139, 8546278, 21365695, 42731390]

約数ペア:

[(1, 42731390), (2, 21365695), (5, 8546278), (10, 4273139), (13, 3287030), (26, 1643515), (65, 657406), (130, 328703), (257, 166270), (514, 83135), (1279, 33410), (1285, 33254), (2558, 16705), (2570, 16627), (3341, 12790), (6395, 6682)]