81387296

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{41}}^2\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 72

約数和(自身を含む): 175849380

約数和(自身を除く): 94462084

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 41, 68, 82, 89, 136, 164, 178, 272, 328, 356, 544, 656, 697, 712, 1312, 1394, 1424, 1513, 1681, 2788, 2848, 3026, 3362, 3649, 5576, 6052, 6724, 7298, 11152, 12104, 13448, 14596, 22304, 24208, 26896, 28577, 29192, 48416, 53792, 57154, 58384, 62033, 114308, 116768, 124066, 149609, 228616, 248132, 299218, 457232, 496264, 598436, 914464, 992528, 1196872, 1985056, 2393744, 2543353, 4787488, 5086706, 10173412, 20346824, 40693648, 81387296]

約数ペア:

[(1, 81387296), (2, 40693648), (4, 20346824), (8, 10173412), (16, 5086706), (17, 4787488), (32, 2543353), (34, 2393744), (41, 1985056), (68, 1196872), (82, 992528), (89, 914464), (136, 598436), (164, 496264), (178, 457232), (272, 299218), (328, 248132), (356, 228616), (544, 149609), (656, 124066), (697, 116768), (712, 114308), (1312, 62033), (1394, 58384), (1424, 57154), (1513, 53792), (1681, 48416), (2788, 29192), (2848, 28577), (3026, 26896), (3362, 24208), (3649, 22304), (5576, 14596), (6052, 13448), (6724, 12104), (7298, 11152)]