261282276

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{2767}}^1$

素因数の和:2881

約数の個数: 72

約数和(自身を含む): 687150464

約数和(自身を除く): 425868188

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 61, 86, 122, 129, 172, 183, 244, 258, 366, 387, 516, 549, 732, 774, 1098, 1548, 2196, 2623, 2767, 5246, 5534, 7869, 8301, 10492, 11068, 15738, 16602, 23607, 24903, 31476, 33204, 47214, 49806, 94428, 99612, 118981, 168787, 237962, 337574, 356943, 475924, 506361, 675148, 713886, 1012722, 1070829, 1427772, 1519083, 2025444, 2141658, 3038166, 4283316, 6076332, 7257841, 14515682, 21773523, 29031364, 43547046, 65320569, 87094092, 130641138, 261282276]

約数ペア:

[(1, 261282276), (2, 130641138), (3, 87094092), (4, 65320569), (6, 43547046), (9, 29031364), (12, 21773523), (18, 14515682), (36, 7257841), (43, 6076332), (61, 4283316), (86, 3038166), (122, 2141658), (129, 2025444), (172, 1519083), (183, 1427772), (244, 1070829), (258, 1012722), (366, 713886), (387, 675148), (516, 506361), (549, 475924), (732, 356943), (774, 337574), (1098, 237962), (1548, 168787), (2196, 118981), (2623, 99612), (2767, 94428), (5246, 49806), (5534, 47214), (7869, 33204), (8301, 31476), (10492, 24903), (11068, 23607), (15738, 16602)]