28423780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18457}}^1$

素因数の和:18484

約数の個数: 48

約数和(自身を含む): 74422656

約数和(自身を除く): 45998876

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18457, 36914, 73828, 92285, 129199, 184570, 203027, 258398, 369140, 406054, 516796, 645995, 812108, 1015135, 1291990, 1421189, 2030270, 2583980, 2842378, 4060540, 5684756, 7105945, 14211890, 28423780]

約数ペア:

[(1, 28423780), (2, 14211890), (4, 7105945), (5, 5684756), (7, 4060540), (10, 2842378), (11, 2583980), (14, 2030270), (20, 1421189), (22, 1291990), (28, 1015135), (35, 812108), (44, 645995), (55, 516796), (70, 406054), (77, 369140), (110, 258398), (140, 203027), (154, 184570), (220, 129199), (308, 92285), (385, 73828), (770, 36914), (1540, 18457)]