261858116

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2663}}^1$

素因数の和:2772

約数の個数: 48

約数和(自身を含む): 517966848

約数和(自身を除く): 256108732

約数列:

[1, 2, 4, 13, 26, 31, 52, 61, 62, 122, 124, 244, 403, 793, 806, 1586, 1612, 1891, 2663, 3172, 3782, 5326, 7564, 10652, 24583, 34619, 49166, 69238, 82553, 98332, 138476, 162443, 165106, 324886, 330212, 649772, 1073189, 2111759, 2146378, 4223518, 4292756, 5035733, 8447036, 10071466, 20142932, 65464529, 130929058, 261858116]

約数ペア:

[(1, 261858116), (2, 130929058), (4, 65464529), (13, 20142932), (26, 10071466), (31, 8447036), (52, 5035733), (61, 4292756), (62, 4223518), (122, 2146378), (124, 2111759), (244, 1073189), (403, 649772), (793, 330212), (806, 324886), (1586, 165106), (1612, 162443), (1891, 138476), (2663, 98332), (3172, 82553), (3782, 69238), (5326, 49166), (7564, 34619), (10652, 24583)]