20567728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2333}}^1$

素因数の和:2389

約数の個数: 40

約数和(自身を含む): 43412400

約数和(自身を除く): 22844672

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2333, 4408, 4666, 8816, 9332, 18664, 37328, 44327, 67657, 88654, 135314, 177308, 270628, 354616, 541256, 709232, 1082512, 1285483, 2570966, 5141932, 10283864, 20567728]

約数ペア:

[(1, 20567728), (2, 10283864), (4, 5141932), (8, 2570966), (16, 1285483), (19, 1082512), (29, 709232), (38, 541256), (58, 354616), (76, 270628), (116, 177308), (152, 135314), (232, 88654), (304, 67657), (464, 44327), (551, 37328), (1102, 18664), (2204, 9332), (2333, 8816), (4408, 4666)]