20480256

素因数分解:

$2^8\times 3^3\times {\mathrm{2963}}^1$

素因数の和:2988

約数の個数: 72

約数和(自身を含む): 60584160

約数和(自身を除く): 40103904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 192, 216, 256, 288, 384, 432, 576, 768, 864, 1152, 1728, 2304, 2963, 3456, 5926, 6912, 8889, 11852, 17778, 23704, 26667, 35556, 47408, 53334, 71112, 80001, 94816, 106668, 142224, 160002, 189632, 213336, 284448, 320004, 379264, 426672, 568896, 640008, 758528, 853344, 1137792, 1280016, 1706688, 2275584, 2560032, 3413376, 5120064, 6826752, 10240128, 20480256]

約数ペア:

[(1, 20480256), (2, 10240128), (3, 6826752), (4, 5120064), (6, 3413376), (8, 2560032), (9, 2275584), (12, 1706688), (16, 1280016), (18, 1137792), (24, 853344), (27, 758528), (32, 640008), (36, 568896), (48, 426672), (54, 379264), (64, 320004), (72, 284448), (96, 213336), (108, 189632), (128, 160002), (144, 142224), (192, 106668), (216, 94816), (256, 80001), (288, 71112), (384, 53334), (432, 47408), (576, 35556), (768, 26667), (864, 23704), (1152, 17778), (1728, 11852), (2304, 8889), (2963, 6912), (3456, 5926)]