161891072

素因数分解:

$2^8\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1481}}^1$

素因数の和:1565

約数の個数: 72

約数和(自身を含む): 375621792

約数和(自身を除く): 213730720

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 224, 244, 256, 427, 448, 488, 854, 896, 976, 1481, 1708, 1792, 1952, 2962, 3416, 3904, 5924, 6832, 7808, 10367, 11848, 13664, 15616, 20734, 23696, 27328, 41468, 47392, 54656, 82936, 90341, 94784, 109312, 165872, 180682, 189568, 331744, 361364, 379136, 632387, 663488, 722728, 1264774, 1326976, 1445456, 2529548, 2653952, 2890912, 5059096, 5781824, 10118192, 11563648, 20236384, 23127296, 40472768, 80945536, 161891072]

約数ペア:

[(1, 161891072), (2, 80945536), (4, 40472768), (7, 23127296), (8, 20236384), (14, 11563648), (16, 10118192), (28, 5781824), (32, 5059096), (56, 2890912), (61, 2653952), (64, 2529548), (112, 1445456), (122, 1326976), (128, 1264774), (224, 722728), (244, 663488), (256, 632387), (427, 379136), (448, 361364), (488, 331744), (854, 189568), (896, 180682), (976, 165872), (1481, 109312), (1708, 94784), (1792, 90341), (1952, 82936), (2962, 54656), (3416, 47392), (3904, 41468), (5924, 27328), (6832, 23696), (7808, 20734), (10367, 15616), (11848, 13664)]