20781184

素因数分解:

$2^7\times {\mathrm{179}}^1\times {\mathrm{907}}^1$

素因数の和:1100

約数の個数: 32

約数和(自身を含む): 41677200

約数和(自身を除く): 20896016

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 179, 358, 716, 907, 1432, 1814, 2864, 3628, 5728, 7256, 11456, 14512, 22912, 29024, 58048, 116096, 162353, 324706, 649412, 1298824, 2597648, 5195296, 10390592, 20781184]

約数ペア:

[(1, 20781184), (2, 10390592), (4, 5195296), (8, 2597648), (16, 1298824), (32, 649412), (64, 324706), (128, 162353), (179, 116096), (358, 58048), (716, 29024), (907, 22912), (1432, 14512), (1814, 11456), (2864, 7256), (3628, 5728)]