799438520

素因数分解:

$2^3\times 5^1\times {\mathrm{19985963}}^1$

素因数の和:19985974

約数の個数: 16

約数和(自身を含む): 1798736760

約数和(自身を除く): 999298240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 19985963, 39971926, 79943852, 99929815, 159887704, 199859630, 399719260, 799438520]

約数ペア:

[(1, 799438520), (2, 399719260), (4, 199859630), (5, 159887704), (8, 99929815), (10, 79943852), (20, 39971926), (40, 19985963)]