1247008256

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4357}}^1$

素因数の和:4431

約数の個数: 80

約数和(自身を含む): 2746272144

約数和(自身を除く): 1499263888

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 172, 208, 256, 344, 416, 512, 559, 688, 832, 1118, 1376, 1664, 2236, 2752, 3328, 4357, 4472, 5504, 6656, 8714, 8944, 11008, 17428, 17888, 22016, 34856, 35776, 56641, 69712, 71552, 113282, 139424, 143104, 187351, 226564, 278848, 286208, 374702, 453128, 557696, 749404, 906256, 1115392, 1498808, 1812512, 2230784, 2435563, 2997616, 3625024, 4871126, 5995232, 7250048, 9742252, 11990464, 14500096, 19484504, 23980928, 29000192, 38969008, 47961856, 77938016, 95923712, 155876032, 311752064, 623504128, 1247008256]

約数ペア:

[(1, 1247008256), (2, 623504128), (4, 311752064), (8, 155876032), (13, 95923712), (16, 77938016), (26, 47961856), (32, 38969008), (43, 29000192), (52, 23980928), (64, 19484504), (86, 14500096), (104, 11990464), (128, 9742252), (172, 7250048), (208, 5995232), (256, 4871126), (344, 3625024), (416, 2997616), (512, 2435563), (559, 2230784), (688, 1812512), (832, 1498808), (1118, 1115392), (1376, 906256), (1664, 749404), (2236, 557696), (2752, 453128), (3328, 374702), (4357, 286208), (4472, 278848), (5504, 226564), (6656, 187351), (8714, 143104), (8944, 139424), (11008, 113282), (17428, 71552), (17888, 69712), (22016, 56641), (34856, 35776)]