28266425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 41247360

約数和(自身を除く): 12980935

約数列:

[1, 5, 11, 23, 25, 41, 55, 109, 115, 205, 253, 275, 451, 545, 575, 943, 1025, 1199, 1265, 2255, 2507, 2725, 4469, 4715, 5995, 6325, 10373, 11275, 12535, 22345, 23575, 27577, 29975, 49159, 51865, 62675, 102787, 111725, 137885, 245795, 259325, 513935, 689425, 1130657, 1228975, 2569675, 5653285, 28266425]

約数ペア:

[(1, 28266425), (5, 5653285), (11, 2569675), (23, 1228975), (25, 1130657), (41, 689425), (55, 513935), (109, 259325), (115, 245795), (205, 137885), (253, 111725), (275, 102787), (451, 62675), (545, 51865), (575, 49159), (943, 29975), (1025, 27577), (1199, 23575), (1265, 22345), (2255, 12535), (2507, 11275), (2725, 10373), (4469, 6325), (4715, 5995)]