18626816

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 41636280

約数和(自身を除く): 23009464

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 116, 128, 193, 208, 232, 256, 377, 386, 416, 464, 754, 772, 832, 928, 1508, 1544, 1664, 1856, 2509, 3016, 3088, 3328, 3712, 5018, 5597, 6032, 6176, 7424, 10036, 11194, 12064, 12352, 20072, 22388, 24128, 24704, 40144, 44776, 48256, 49408, 72761, 80288, 89552, 96512, 145522, 160576, 179104, 291044, 321152, 358208, 582088, 642304, 716416, 1164176, 1432832, 2328352, 4656704, 9313408, 18626816]

約数ペア:

[(1, 18626816), (2, 9313408), (4, 4656704), (8, 2328352), (13, 1432832), (16, 1164176), (26, 716416), (29, 642304), (32, 582088), (52, 358208), (58, 321152), (64, 291044), (104, 179104), (116, 160576), (128, 145522), (193, 96512), (208, 89552), (232, 80288), (256, 72761), (377, 49408), (386, 48256), (416, 44776), (464, 40144), (754, 24704), (772, 24128), (832, 22388), (928, 20072), (1508, 12352), (1544, 12064), (1664, 11194), (1856, 10036), (2509, 7424), (3016, 6176), (3088, 6032), (3328, 5597), (3712, 5018)]