420691280

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{14897}}^1$

素因数の和:15263

約数の個数: 40

約数和(自身を含む): 980943912

約数和(自身を除く): 560252632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 1412, 1765, 2824, 3530, 5648, 7060, 14120, 14897, 28240, 29794, 59588, 74485, 119176, 148970, 238352, 297940, 595880, 1191760, 5258641, 10517282, 21034564, 26293205, 42069128, 52586410, 84138256, 105172820, 210345640, 420691280]

約数ペア:

[(1, 420691280), (2, 210345640), (4, 105172820), (5, 84138256), (8, 52586410), (10, 42069128), (16, 26293205), (20, 21034564), (40, 10517282), (80, 5258641), (353, 1191760), (706, 595880), (1412, 297940), (1765, 238352), (2824, 148970), (3530, 119176), (5648, 74485), (7060, 59588), (14120, 29794), (14897, 28240)]