20725504

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4261}}^1$

素因数の和:4296

約数の個数: 36

約数和(自身を含む): 43557640

約数和(自身を除く): 22832136

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4261, 4864, 8522, 17044, 34088, 68176, 80959, 136352, 161918, 272704, 323836, 545408, 647672, 1090816, 1295344, 2590688, 5181376, 10362752, 20725504]

約数ペア:

[(1, 20725504), (2, 10362752), (4, 5181376), (8, 2590688), (16, 1295344), (19, 1090816), (32, 647672), (38, 545408), (64, 323836), (76, 272704), (128, 161918), (152, 136352), (256, 80959), (304, 68176), (608, 34088), (1216, 17044), (2432, 8522), (4261, 4864)]