221480240

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{38993}}^1$

素因数の和:39077

約数の個数: 40

約数和(自身を含む): 522207648

約数和(自身を除く): 300727408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 38993, 77986, 155972, 194965, 311944, 389930, 623888, 779860, 1559720, 2768503, 3119440, 5537006, 11074012, 13842515, 22148024, 27685030, 44296048, 55370060, 110740120, 221480240]

約数ペア:

[(1, 221480240), (2, 110740120), (4, 55370060), (5, 44296048), (8, 27685030), (10, 22148024), (16, 13842515), (20, 11074012), (40, 5537006), (71, 3119440), (80, 2768503), (142, 1559720), (284, 779860), (355, 623888), (568, 389930), (710, 311944), (1136, 194965), (1420, 155972), (2840, 77986), (5680, 38993)]