80000128

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{367}}^1$

素因数の和:525

約数の個数: 64

約数和(自身を含む): 173416320

約数和(自身を除く): 93416192

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 131, 208, 262, 367, 416, 524, 734, 832, 1048, 1468, 1664, 1703, 2096, 2936, 3406, 4192, 4771, 5872, 6812, 8384, 9542, 11744, 13624, 16768, 19084, 23488, 27248, 38168, 46976, 48077, 54496, 76336, 96154, 108992, 152672, 192308, 217984, 305344, 384616, 610688, 625001, 769232, 1250002, 1538464, 2500004, 3076928, 5000008, 6153856, 10000016, 20000032, 40000064, 80000128]

約数ペア:

[(1, 80000128), (2, 40000064), (4, 20000032), (8, 10000016), (13, 6153856), (16, 5000008), (26, 3076928), (32, 2500004), (52, 1538464), (64, 1250002), (104, 769232), (128, 625001), (131, 610688), (208, 384616), (262, 305344), (367, 217984), (416, 192308), (524, 152672), (734, 108992), (832, 96154), (1048, 76336), (1468, 54496), (1664, 48077), (1703, 46976), (2096, 38168), (2936, 27248), (3406, 23488), (4192, 19084), (4771, 16768), (5872, 13624), (6812, 11744), (8384, 9542)]