20349660880

素因数分解:

$2^4\times 5^1\times {\mathrm{254370761}}^1$

素因数の和:254370774

約数の個数: 20

約数和(自身を含む): 47312961732

約数和(自身を除く): 26963300852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254370761, 508741522, 1017483044, 1271853805, 2034966088, 2543707610, 4069932176, 5087415220, 10174830440, 20349660880]

約数ペア:

[(1, 20349660880), (2, 10174830440), (4, 5087415220), (5, 4069932176), (8, 2543707610), (10, 2034966088), (16, 1271853805), (20, 1017483044), (40, 508741522), (80, 254370761)]