20285350

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 40265280

約数和(自身を除く): 19979930

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 131, 163, 190, 262, 326, 475, 655, 815, 950, 1310, 1630, 2489, 3097, 3275, 4075, 4978, 6194, 6550, 8150, 12445, 15485, 21353, 24890, 30970, 42706, 62225, 77425, 106765, 124450, 154850, 213530, 405707, 533825, 811414, 1067650, 2028535, 4057070, 10142675, 20285350]

約数ペア:

[(1, 20285350), (2, 10142675), (5, 4057070), (10, 2028535), (19, 1067650), (25, 811414), (38, 533825), (50, 405707), (95, 213530), (131, 154850), (163, 124450), (190, 106765), (262, 77425), (326, 62225), (475, 42706), (655, 30970), (815, 24890), (950, 21353), (1310, 15485), (1630, 12445), (2489, 8150), (3097, 6550), (3275, 6194), (4075, 4978)]