220166480

素因数分解:

$2^4\times 5^1\times {\mathrm{2752081}}^1$

素因数の和:2752094

約数の個数: 20

約数和(自身を含む): 511887252

約数和(自身を除く): 291720772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2752081, 5504162, 11008324, 13760405, 22016648, 27520810, 44033296, 55041620, 110083240, 220166480]

約数ペア:

[(1, 220166480), (2, 110083240), (4, 55041620), (5, 44033296), (8, 27520810), (10, 22016648), (16, 13760405), (20, 11008324), (40, 5504162), (80, 2752081)]