256308155

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{233}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 327794688

約数和(自身を除く): 71486533

約数列:

[1, 5, 31, 47, 151, 155, 233, 235, 755, 1165, 1457, 4681, 7097, 7223, 7285, 10951, 23405, 35183, 35485, 36115, 54755, 175915, 220007, 339481, 1090673, 1100035, 1653601, 1697405, 5453365, 8268005, 51261631, 256308155]

約数ペア:

[(1, 256308155), (5, 51261631), (31, 8268005), (47, 5453365), (151, 1697405), (155, 1653601), (233, 1100035), (235, 1090673), (755, 339481), (1165, 220007), (1457, 175915), (4681, 54755), (7097, 36115), (7223, 35485), (7285, 35183), (10951, 23405)]