28935280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 74245248

約数和(自身を除く): 45309968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 131, 176, 220, 251, 262, 440, 502, 524, 655, 880, 1004, 1048, 1255, 1310, 1441, 2008, 2096, 2510, 2620, 2761, 2882, 4016, 5020, 5240, 5522, 5764, 7205, 10040, 10480, 11044, 11528, 13805, 14410, 20080, 22088, 23056, 27610, 28820, 32881, 44176, 55220, 57640, 65762, 110440, 115280, 131524, 164405, 220880, 263048, 328810, 361691, 526096, 657620, 723382, 1315240, 1446764, 1808455, 2630480, 2893528, 3616910, 5787056, 7233820, 14467640, 28935280]

約数ペア:

[(1, 28935280), (2, 14467640), (4, 7233820), (5, 5787056), (8, 3616910), (10, 2893528), (11, 2630480), (16, 1808455), (20, 1446764), (22, 1315240), (40, 723382), (44, 657620), (55, 526096), (80, 361691), (88, 328810), (110, 263048), (131, 220880), (176, 164405), (220, 131524), (251, 115280), (262, 110440), (440, 65762), (502, 57640), (524, 55220), (655, 44176), (880, 32881), (1004, 28820), (1048, 27610), (1255, 23056), (1310, 22088), (1441, 20080), (2008, 14410), (2096, 13805), (2510, 11528), (2620, 11044), (2761, 10480), (2882, 10040), (4016, 7205), (5020, 5764), (5240, 5522)]