20578016

素因数分解:

$2^5\times {\mathrm{709}}^1\times {\mathrm{907}}^1$

素因数の和:1626

約数の個数: 24

約数和(自身を含む): 40614840

約数和(自身を除く): 20036824

約数列:

[1, 2, 4, 8, 16, 32, 709, 907, 1418, 1814, 2836, 3628, 5672, 7256, 11344, 14512, 22688, 29024, 643063, 1286126, 2572252, 5144504, 10289008, 20578016]

約数ペア:

[(1, 20578016), (2, 10289008), (4, 5144504), (8, 2572252), (16, 1286126), (32, 643063), (709, 29024), (907, 22688), (1418, 14512), (1814, 11344), (2836, 7256), (3628, 5672)]