81220672

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2381}}^1$

素因数の和:2447

約数の個数: 56

約数和(自身を含む): 177878232

約数和(自身を除く): 96657560

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 164, 208, 328, 416, 533, 656, 832, 1066, 1312, 2132, 2381, 2624, 4264, 4762, 8528, 9524, 17056, 19048, 30953, 34112, 38096, 61906, 76192, 97621, 123812, 152384, 195242, 247624, 390484, 495248, 780968, 990496, 1269073, 1561936, 1980992, 2538146, 3123872, 5076292, 6247744, 10152584, 20305168, 40610336, 81220672]

約数ペア:

[(1, 81220672), (2, 40610336), (4, 20305168), (8, 10152584), (13, 6247744), (16, 5076292), (26, 3123872), (32, 2538146), (41, 1980992), (52, 1561936), (64, 1269073), (82, 990496), (104, 780968), (164, 495248), (208, 390484), (328, 247624), (416, 195242), (533, 152384), (656, 123812), (832, 97621), (1066, 76192), (1312, 61906), (2132, 38096), (2381, 34112), (2624, 30953), (4264, 19048), (4762, 17056), (8528, 9524)]