81807616

素因数分解:

$2^8\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:196

約数の個数: 108

約数和(自身を含む): 190296400

約数和(自身を除く): 108488784

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 121, 128, 139, 152, 176, 209, 242, 256, 278, 304, 352, 418, 484, 556, 608, 704, 836, 968, 1112, 1216, 1408, 1529, 1672, 1936, 2224, 2299, 2432, 2641, 2816, 3058, 3344, 3872, 4448, 4598, 4864, 5282, 6116, 6688, 7744, 8896, 9196, 10564, 12232, 13376, 15488, 16819, 17792, 18392, 21128, 24464, 26752, 29051, 30976, 33638, 35584, 36784, 42256, 48928, 53504, 58102, 67276, 73568, 84512, 97856, 116204, 134552, 147136, 169024, 195712, 232408, 269104, 294272, 319561, 338048, 391424, 464816, 538208, 588544, 639122, 676096, 929632, 1076416, 1278244, 1859264, 2152832, 2556488, 3718528, 4305664, 5112976, 7437056, 10225952, 20451904, 40903808, 81807616]

約数ペア:

[(1, 81807616), (2, 40903808), (4, 20451904), (8, 10225952), (11, 7437056), (16, 5112976), (19, 4305664), (22, 3718528), (32, 2556488), (38, 2152832), (44, 1859264), (64, 1278244), (76, 1076416), (88, 929632), (121, 676096), (128, 639122), (139, 588544), (152, 538208), (176, 464816), (209, 391424), (242, 338048), (256, 319561), (278, 294272), (304, 269104), (352, 232408), (418, 195712), (484, 169024), (556, 147136), (608, 134552), (704, 116204), (836, 97856), (968, 84512), (1112, 73568), (1216, 67276), (1408, 58102), (1529, 53504), (1672, 48928), (1936, 42256), (2224, 36784), (2299, 35584), (2432, 33638), (2641, 30976), (2816, 29051), (3058, 26752), (3344, 24464), (3872, 21128), (4448, 18392), (4598, 17792), (4864, 16819), (5282, 15488), (6116, 13376), (6688, 12232), (7744, 10564), (8896, 9196)]