128491880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{292027}}^1$

素因数の和:292049

約数の個数: 32

約数和(自身を含む): 315390240

約数和(自身を除く): 186898360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 292027, 584054, 1168108, 1460135, 2336216, 2920270, 3212297, 5840540, 6424594, 11681080, 12849188, 16061485, 25698376, 32122970, 64245940, 128491880]

約数ペア:

[(1, 128491880), (2, 64245940), (4, 32122970), (5, 25698376), (8, 16061485), (10, 12849188), (11, 11681080), (20, 6424594), (22, 5840540), (40, 3212297), (44, 2920270), (55, 2336216), (88, 1460135), (110, 1168108), (220, 584054), (440, 292027)]