28290345

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1907}}^1$

素因数の和:1981

約数の個数: 32

約数和(自身を含む): 48356352

約数和(自身を除く): 20066007

約数列:

[1, 3, 5, 15, 23, 43, 69, 115, 129, 215, 345, 645, 989, 1907, 2967, 4945, 5721, 9535, 14835, 28605, 43861, 82001, 131583, 219305, 246003, 410005, 657915, 1230015, 1886023, 5658069, 9430115, 28290345]

約数ペア:

[(1, 28290345), (3, 9430115), (5, 5658069), (15, 1886023), (23, 1230015), (43, 657915), (69, 410005), (115, 246003), (129, 219305), (215, 131583), (345, 82001), (645, 43861), (989, 28605), (1907, 14835), (2967, 9535), (4945, 5721)]