81310671

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 135116800

約数和(自身を除く): 53806129

約数列:

[1, 3, 9, 13, 19, 39, 57, 79, 117, 171, 237, 247, 463, 711, 741, 1027, 1389, 1501, 2223, 3081, 4167, 4503, 6019, 8797, 9243, 13509, 18057, 19513, 26391, 36577, 54171, 58539, 79173, 109731, 114361, 175617, 329193, 343083, 475501, 694963, 1029249, 1426503, 2084889, 4279509, 6254667, 9034519, 27103557, 81310671]

約数ペア:

[(1, 81310671), (3, 27103557), (9, 9034519), (13, 6254667), (19, 4279509), (39, 2084889), (57, 1426503), (79, 1029249), (117, 694963), (171, 475501), (237, 343083), (247, 329193), (463, 175617), (711, 114361), (741, 109731), (1027, 79173), (1389, 58539), (1501, 54171), (2223, 36577), (3081, 26391), (4167, 19513), (4503, 18057), (6019, 13509), (8797, 9243)]