457240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:112

約数の個数: 64

約数和(自身を含む): 1244160

約数和(自身を除く): 786920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 71, 92, 115, 140, 142, 161, 184, 230, 280, 284, 322, 355, 460, 497, 568, 644, 710, 805, 920, 994, 1288, 1420, 1610, 1633, 1988, 2485, 2840, 3220, 3266, 3976, 4970, 6440, 6532, 8165, 9940, 11431, 13064, 16330, 19880, 22862, 32660, 45724, 57155, 65320, 91448, 114310, 228620, 457240]

約数ペア:

[(1, 457240), (2, 228620), (4, 114310), (5, 91448), (7, 65320), (8, 57155), (10, 45724), (14, 32660), (20, 22862), (23, 19880), (28, 16330), (35, 13064), (40, 11431), (46, 9940), (56, 8165), (70, 6532), (71, 6440), (92, 4970), (115, 3976), (140, 3266), (142, 3220), (161, 2840), (184, 2485), (230, 1988), (280, 1633), (284, 1610), (322, 1420), (355, 1288), (460, 994), (497, 920), (568, 805), (644, 710)]