131161856

素因数分解:

$2^8\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1381}}^1$

素因数の和:1457

約数の個数: 72

約数和(自身を含む): 305079264

約数和(自身を除く): 173917408

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 256, 371, 424, 448, 742, 848, 896, 1381, 1484, 1696, 1792, 2762, 2968, 3392, 5524, 5936, 6784, 9667, 11048, 11872, 13568, 19334, 22096, 23744, 38668, 44192, 47488, 73193, 77336, 88384, 94976, 146386, 154672, 176768, 292772, 309344, 353536, 512351, 585544, 618688, 1024702, 1171088, 1237376, 2049404, 2342176, 2474752, 4098808, 4684352, 8197616, 9368704, 16395232, 18737408, 32790464, 65580928, 131161856]

約数ペア:

[(1, 131161856), (2, 65580928), (4, 32790464), (7, 18737408), (8, 16395232), (14, 9368704), (16, 8197616), (28, 4684352), (32, 4098808), (53, 2474752), (56, 2342176), (64, 2049404), (106, 1237376), (112, 1171088), (128, 1024702), (212, 618688), (224, 585544), (256, 512351), (371, 353536), (424, 309344), (448, 292772), (742, 176768), (848, 154672), (896, 146386), (1381, 94976), (1484, 88384), (1696, 77336), (1792, 73193), (2762, 47488), (2968, 44192), (3392, 38668), (5524, 23744), (5936, 22096), (6784, 19334), (9667, 13568), (11048, 11872)]