1999677940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{248099}}^1$

素因数の和:248152

約数の個数: 48

約数和(自身を含む): 4668249600

約数和(自身を除く): 2668571660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 248099, 496198, 992396, 1240495, 2480990, 3225287, 4961980, 6450574, 7691069, 12901148, 15382138, 16126435, 30764276, 32252870, 38455345, 64505740, 76910690, 99983897, 153821380, 199967794, 399935588, 499919485, 999838970, 1999677940]

約数ペア:

[(1, 1999677940), (2, 999838970), (4, 499919485), (5, 399935588), (10, 199967794), (13, 153821380), (20, 99983897), (26, 76910690), (31, 64505740), (52, 38455345), (62, 32252870), (65, 30764276), (124, 16126435), (130, 15382138), (155, 12901148), (260, 7691069), (310, 6450574), (403, 4961980), (620, 3225287), (806, 2480990), (1612, 1240495), (2015, 992396), (4030, 496198), (8060, 248099)]