12991880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29527}}^1$

素因数の和:29549

約数の個数: 32

約数和(自身を含む): 31890240

約数和(自身を除く): 18898360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 29527, 59054, 118108, 147635, 236216, 295270, 324797, 590540, 649594, 1181080, 1299188, 1623985, 2598376, 3247970, 6495940, 12991880]

約数ペア:

[(1, 12991880), (2, 6495940), (4, 3247970), (5, 2598376), (8, 1623985), (10, 1299188), (11, 1181080), (20, 649594), (22, 590540), (40, 324797), (44, 295270), (55, 236216), (88, 147635), (110, 118108), (220, 59054), (440, 29527)]