20753408

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1559}}^1$

素因数の和:1592

約数の個数: 44

約数和(自身を含む): 44706480

約数和(自身を除く): 23953072

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1559, 1664, 3118, 3328, 6236, 6656, 12472, 13312, 20267, 24944, 40534, 49888, 81068, 99776, 162136, 199552, 324272, 399104, 648544, 798208, 1297088, 1596416, 2594176, 5188352, 10376704, 20753408]

約数ペア:

[(1, 20753408), (2, 10376704), (4, 5188352), (8, 2594176), (13, 1596416), (16, 1297088), (26, 798208), (32, 648544), (52, 399104), (64, 324272), (104, 199552), (128, 162136), (208, 99776), (256, 81068), (416, 49888), (512, 40534), (832, 24944), (1024, 20267), (1559, 13312), (1664, 12472), (3118, 6656), (3328, 6236)]