130368520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79493}}^1$

素因数の和:79545

約数の個数: 32

約数和(自身を含む): 300487320

約数和(自身を除く): 170118800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 79493, 158986, 317972, 397465, 635944, 794930, 1589860, 3179720, 3259213, 6518426, 13036852, 16296065, 26073704, 32592130, 65184260, 130368520]

約数ペア:

[(1, 130368520), (2, 65184260), (4, 32592130), (5, 26073704), (8, 16296065), (10, 13036852), (20, 6518426), (40, 3259213), (41, 3179720), (82, 1589860), (164, 794930), (205, 635944), (328, 397465), (410, 317972), (820, 158986), (1640, 79493)]