81697408

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1693}}^1$

素因数の和:1749

約数の個数: 64

約数和(自身を含む): 181427400

約数和(自身を除く): 99729992

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 116, 128, 208, 232, 377, 416, 464, 754, 832, 928, 1508, 1664, 1693, 1856, 3016, 3386, 3712, 6032, 6772, 12064, 13544, 22009, 24128, 27088, 44018, 48256, 49097, 54176, 88036, 98194, 108352, 176072, 196388, 216704, 352144, 392776, 638261, 704288, 785552, 1276522, 1408576, 1571104, 2553044, 2817152, 3142208, 5106088, 6284416, 10212176, 20424352, 40848704, 81697408]

約数ペア:

[(1, 81697408), (2, 40848704), (4, 20424352), (8, 10212176), (13, 6284416), (16, 5106088), (26, 3142208), (29, 2817152), (32, 2553044), (52, 1571104), (58, 1408576), (64, 1276522), (104, 785552), (116, 704288), (128, 638261), (208, 392776), (232, 352144), (377, 216704), (416, 196388), (464, 176072), (754, 108352), (832, 98194), (928, 88036), (1508, 54176), (1664, 49097), (1693, 48256), (1856, 44018), (3016, 27088), (3386, 24128), (3712, 22009), (6032, 13544), (6772, 12064)]