261421404

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^2\times {\mathrm{211}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 649208448

約数和(自身を除く): 387787044

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 67, 69, 92, 134, 138, 201, 211, 268, 276, 402, 422, 633, 804, 844, 1266, 1541, 2532, 3082, 4489, 4623, 4853, 6164, 8978, 9246, 9706, 13467, 14137, 14559, 17956, 18492, 19412, 26934, 28274, 29118, 42411, 53868, 56548, 58236, 84822, 103247, 169644, 206494, 309741, 325151, 412988, 619482, 650302, 947179, 975453, 1238964, 1300604, 1894358, 1950906, 2841537, 3788716, 3901812, 5683074, 11366148, 21785117, 43570234, 65355351, 87140468, 130710702, 261421404]

約数ペア:

[(1, 261421404), (2, 130710702), (3, 87140468), (4, 65355351), (6, 43570234), (12, 21785117), (23, 11366148), (46, 5683074), (67, 3901812), (69, 3788716), (92, 2841537), (134, 1950906), (138, 1894358), (201, 1300604), (211, 1238964), (268, 975453), (276, 947179), (402, 650302), (422, 619482), (633, 412988), (804, 325151), (844, 309741), (1266, 206494), (1541, 169644), (2532, 103247), (3082, 84822), (4489, 58236), (4623, 56548), (4853, 53868), (6164, 42411), (8978, 29118), (9246, 28274), (9706, 26934), (13467, 19412), (14137, 18492), (14559, 17956)]