66558440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127997}}^1$

素因数の和:128021

約数の個数: 32

約数和(自身を含む): 161277480

約数和(自身を除く): 94719040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 127997, 255994, 511988, 639985, 1023976, 1279970, 1663961, 2559940, 3327922, 5119880, 6655844, 8319805, 13311688, 16639610, 33279220, 66558440]

約数ペア:

[(1, 66558440), (2, 33279220), (4, 16639610), (5, 13311688), (8, 8319805), (10, 6655844), (13, 5119880), (20, 3327922), (26, 2559940), (40, 1663961), (52, 1279970), (65, 1023976), (104, 639985), (130, 511988), (260, 255994), (520, 127997)]