16988240

素因数分解:

$2^4\times 5^1\times {\mathrm{212353}}^1$

素因数の和:212366

約数の個数: 20

約数和(自身を含む): 39497844

約数和(自身を除く): 22509604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 212353, 424706, 849412, 1061765, 1698824, 2123530, 3397648, 4247060, 8494120, 16988240]

約数ペア:

[(1, 16988240), (2, 8494120), (4, 4247060), (5, 3397648), (8, 2123530), (10, 1698824), (16, 1061765), (20, 849412), (40, 424706), (80, 212353)]