18720768

素因数分解:

$2^{11}\times 3^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1$

素因数の和:313

約数の個数: 96

約数和(自身を含む): 54643680

約数和(自身を除く): 35922912

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 128, 132, 176, 192, 256, 264, 277, 352, 384, 512, 528, 554, 704, 768, 831, 1024, 1056, 1108, 1408, 1536, 1662, 2048, 2112, 2216, 2816, 3047, 3072, 3324, 4224, 4432, 5632, 6094, 6144, 6648, 8448, 8864, 9141, 11264, 12188, 13296, 16896, 17728, 18282, 22528, 24376, 26592, 33792, 35456, 36564, 48752, 53184, 67584, 70912, 73128, 97504, 106368, 141824, 146256, 195008, 212736, 283648, 292512, 390016, 425472, 567296, 585024, 780032, 850944, 1170048, 1560064, 1701888, 2340096, 3120128, 4680192, 6240256, 9360384, 18720768]

約数ペア:

[(1, 18720768), (2, 9360384), (3, 6240256), (4, 4680192), (6, 3120128), (8, 2340096), (11, 1701888), (12, 1560064), (16, 1170048), (22, 850944), (24, 780032), (32, 585024), (33, 567296), (44, 425472), (48, 390016), (64, 292512), (66, 283648), (88, 212736), (96, 195008), (128, 146256), (132, 141824), (176, 106368), (192, 97504), (256, 73128), (264, 70912), (277, 67584), (352, 53184), (384, 48752), (512, 36564), (528, 35456), (554, 33792), (704, 26592), (768, 24376), (831, 22528), (1024, 18282), (1056, 17728), (1108, 16896), (1408, 13296), (1536, 12188), (1662, 11264), (2048, 9141), (2112, 8864), (2216, 8448), (2816, 6648), (3047, 6144), (3072, 6094), (3324, 5632), (4224, 4432)]