28171990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{36587}}^1$

素因数の和:36612

約数の個数: 32

約数和(自身を含む): 63224064

約数和(自身を除く): 35052074

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 36587, 73174, 182935, 256109, 365870, 402457, 512218, 804914, 1280545, 2012285, 2561090, 2817199, 4024570, 5634398, 14085995, 28171990]

約数ペア:

[(1, 28171990), (2, 14085995), (5, 5634398), (7, 4024570), (10, 2817199), (11, 2561090), (14, 2012285), (22, 1280545), (35, 804914), (55, 512218), (70, 402457), (77, 365870), (110, 256109), (154, 182935), (385, 73174), (770, 36587)]