220173080

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{20929}}^1$

素因数の和:21203

約数の個数: 32

約数和(自身を含む): 497296800

約数和(自身を除く): 277123720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 20929, 41858, 83716, 104645, 167432, 209290, 418580, 837160, 5504327, 11008654, 22017308, 27521635, 44034616, 55043270, 110086540, 220173080]

約数ペア:

[(1, 220173080), (2, 110086540), (4, 55043270), (5, 44034616), (8, 27521635), (10, 22017308), (20, 11008654), (40, 5504327), (263, 837160), (526, 418580), (1052, 209290), (1315, 167432), (2104, 104645), (2630, 83716), (5260, 41858), (10520, 20929)]