20185700

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2081}}^1$

素因数の和:2192

約数の個数: 36

約数和(自身を含む): 44275812

約数和(自身を除く): 24090112

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2081, 2425, 4162, 4850, 8324, 9700, 10405, 20810, 41620, 52025, 104050, 201857, 208100, 403714, 807428, 1009285, 2018570, 4037140, 5046425, 10092850, 20185700]

約数ペア:

[(1, 20185700), (2, 10092850), (4, 5046425), (5, 4037140), (10, 2018570), (20, 1009285), (25, 807428), (50, 403714), (97, 208100), (100, 201857), (194, 104050), (388, 52025), (485, 41620), (970, 20810), (1940, 10405), (2081, 9700), (2425, 8324), (4162, 4850)]