20375296

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 44150400

約数和(自身を除く): 23775104

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 64, 71, 76, 118, 128, 142, 152, 236, 256, 284, 304, 472, 568, 608, 944, 1121, 1136, 1216, 1349, 1888, 2242, 2272, 2432, 2698, 3776, 4189, 4484, 4544, 4864, 5396, 7552, 8378, 8968, 9088, 10792, 15104, 16756, 17936, 18176, 21584, 33512, 35872, 43168, 67024, 71744, 79591, 86336, 134048, 143488, 159182, 172672, 268096, 286976, 318364, 345344, 536192, 636728, 1072384, 1273456, 2546912, 5093824, 10187648, 20375296]

約数ペア:

[(1, 20375296), (2, 10187648), (4, 5093824), (8, 2546912), (16, 1273456), (19, 1072384), (32, 636728), (38, 536192), (59, 345344), (64, 318364), (71, 286976), (76, 268096), (118, 172672), (128, 159182), (142, 143488), (152, 134048), (236, 86336), (256, 79591), (284, 71744), (304, 67024), (472, 43168), (568, 35872), (608, 33512), (944, 21584), (1121, 18176), (1136, 17936), (1216, 16756), (1349, 15104), (1888, 10792), (2242, 9088), (2272, 8968), (2432, 8378), (2698, 7552), (3776, 5396), (4189, 4864), (4484, 4544)]