345779980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{189989}}^1$

素因数の和:190018

約数の個数: 48

約数和(自身を含む): 893712960

約数和(自身を除く): 547932980

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 189989, 379978, 759956, 949945, 1329923, 1899890, 2469857, 2659846, 3799780, 4939714, 5319692, 6649615, 9879428, 12349285, 13299230, 17288999, 24698570, 26598460, 34577998, 49397140, 69155996, 86444995, 172889990, 345779980]

約数ペア:

[(1, 345779980), (2, 172889990), (4, 86444995), (5, 69155996), (7, 49397140), (10, 34577998), (13, 26598460), (14, 24698570), (20, 17288999), (26, 13299230), (28, 12349285), (35, 9879428), (52, 6649615), (65, 5319692), (70, 4939714), (91, 3799780), (130, 2659846), (140, 2469857), (182, 1899890), (260, 1329923), (364, 949945), (455, 759956), (910, 379978), (1820, 189989)]