81309735

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1061}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 153080928

約数和(自身を除く): 71771193

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 131, 195, 393, 585, 655, 1061, 1179, 1703, 1965, 3183, 5109, 5305, 5895, 8515, 9549, 13793, 15327, 15915, 25545, 41379, 47745, 68965, 76635, 124137, 138991, 206895, 416973, 620685, 694955, 1250919, 1806883, 2084865, 5420649, 6254595, 9034415, 16261947, 27103245, 81309735]

約数ペア:

[(1, 81309735), (3, 27103245), (5, 16261947), (9, 9034415), (13, 6254595), (15, 5420649), (39, 2084865), (45, 1806883), (65, 1250919), (117, 694955), (131, 620685), (195, 416973), (393, 206895), (585, 138991), (655, 124137), (1061, 76635), (1179, 68965), (1703, 47745), (1965, 41379), (3183, 25545), (5109, 15915), (5305, 15327), (5895, 13793), (8515, 9549)]