8040940

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{983}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 16944480

約数和(自身を除く): 8903540

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 983, 1636, 1966, 2045, 3932, 4090, 4915, 8180, 9830, 19660, 402047, 804094, 1608188, 2010235, 4020470, 8040940]

約数ペア:

[(1, 8040940), (2, 4020470), (4, 2010235), (5, 1608188), (10, 804094), (20, 402047), (409, 19660), (818, 9830), (983, 8180), (1636, 4915), (1966, 4090), (2045, 3932)]