80781568

素因数分解:

$2^8\times 7^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:823

約数の個数: 72

約数和(自身を含む): 187557440

約数和(自身を除く): 106775872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 224, 244, 256, 427, 448, 488, 739, 854, 896, 976, 1478, 1708, 1792, 1952, 2956, 3416, 3904, 5173, 5912, 6832, 7808, 10346, 11824, 13664, 15616, 20692, 23648, 27328, 41384, 45079, 47296, 54656, 82768, 90158, 94592, 109312, 165536, 180316, 189184, 315553, 331072, 360632, 631106, 662144, 721264, 1262212, 1324288, 1442528, 2524424, 2885056, 5048848, 5770112, 10097696, 11540224, 20195392, 40390784, 80781568]

約数ペア:

[(1, 80781568), (2, 40390784), (4, 20195392), (7, 11540224), (8, 10097696), (14, 5770112), (16, 5048848), (28, 2885056), (32, 2524424), (56, 1442528), (61, 1324288), (64, 1262212), (112, 721264), (122, 662144), (128, 631106), (224, 360632), (244, 331072), (256, 315553), (427, 189184), (448, 180316), (488, 165536), (739, 109312), (854, 94592), (896, 90158), (976, 82768), (1478, 54656), (1708, 47296), (1792, 45079), (1952, 41384), (2956, 27328), (3416, 23648), (3904, 20692), (5173, 15616), (5912, 13664), (6832, 11824), (7808, 10346)]