261218048

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11213}}^1$

素因数の和:11249

約数の個数: 72

約数和(自身を含む): 641799648

約数和(自身を除く): 380581600

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 896, 1456, 1664, 1792, 2912, 3328, 5824, 11213, 11648, 22426, 23296, 44852, 78491, 89704, 145769, 156982, 179408, 291538, 313964, 358816, 583076, 627928, 717632, 1020383, 1166152, 1255856, 1435264, 2040766, 2332304, 2511712, 2870528, 4081532, 4664608, 5023424, 8163064, 9329216, 10046848, 16326128, 18658432, 20093696, 32652256, 37316864, 65304512, 130609024, 261218048]

約数ペア:

[(1, 261218048), (2, 130609024), (4, 65304512), (7, 37316864), (8, 32652256), (13, 20093696), (14, 18658432), (16, 16326128), (26, 10046848), (28, 9329216), (32, 8163064), (52, 5023424), (56, 4664608), (64, 4081532), (91, 2870528), (104, 2511712), (112, 2332304), (128, 2040766), (182, 1435264), (208, 1255856), (224, 1166152), (256, 1020383), (364, 717632), (416, 627928), (448, 583076), (728, 358816), (832, 313964), (896, 291538), (1456, 179408), (1664, 156982), (1792, 145769), (2912, 89704), (3328, 78491), (5824, 44852), (11213, 23296), (11648, 22426)]