281705460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^2\times {\mathrm{499}}^1$

素因数の和:705

約数の個数: 72

約数和(自身を含む): 798588000

約数和(自身を除く): 516882540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 499, 582, 970, 998, 1164, 1455, 1497, 1940, 1996, 2495, 2910, 2994, 4990, 5820, 5988, 7485, 9409, 9980, 14970, 18818, 28227, 29940, 37636, 47045, 48403, 56454, 94090, 96806, 112908, 141135, 145209, 188180, 193612, 242015, 282270, 290418, 484030, 564540, 580836, 726045, 968060, 1452090, 2904180, 4695091, 9390182, 14085273, 18780364, 23475455, 28170546, 46950910, 56341092, 70426365, 93901820, 140852730, 281705460]

約数ペア:

[(1, 281705460), (2, 140852730), (3, 93901820), (4, 70426365), (5, 56341092), (6, 46950910), (10, 28170546), (12, 23475455), (15, 18780364), (20, 14085273), (30, 9390182), (60, 4695091), (97, 2904180), (194, 1452090), (291, 968060), (388, 726045), (485, 580836), (499, 564540), (582, 484030), (970, 290418), (998, 282270), (1164, 242015), (1455, 193612), (1497, 188180), (1940, 145209), (1996, 141135), (2495, 112908), (2910, 96806), (2994, 94090), (4990, 56454), (5820, 48403), (5988, 47045), (7485, 37636), (9409, 29940), (9980, 28227), (14970, 18818)]