320469860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{225683}}^1$

素因数の和:225763

約数の個数: 24

約数和(自身を含む): 682468416

約数和(自身を除く): 361998556

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 225683, 451366, 902732, 1128415, 2256830, 4513660, 16023493, 32046986, 64093972, 80117465, 160234930, 320469860]

約数ペア:

[(1, 320469860), (2, 160234930), (4, 80117465), (5, 64093972), (10, 32046986), (20, 16023493), (71, 4513660), (142, 2256830), (284, 1128415), (355, 902732), (710, 451366), (1420, 225683)]