20512972792

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{2441}}^1\times {\mathrm{80803}}^1$

素因数の和:83263

約数の個数: 32

約数和(自身を含む): 41437907280

約数和(自身を除く): 20924934488

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 2441, 4882, 9764, 19528, 31733, 63466, 80803, 126932, 161606, 253864, 323212, 646424, 1050439, 2100878, 4201756, 8403512, 197240123, 394480246, 788960492, 1577920984, 2564121599, 5128243198, 10256486396, 20512972792]

約数ペア:

[(1, 20512972792), (2, 10256486396), (4, 5128243198), (8, 2564121599), (13, 1577920984), (26, 788960492), (52, 394480246), (104, 197240123), (2441, 8403512), (4882, 4201756), (9764, 2100878), (19528, 1050439), (31733, 646424), (63466, 323212), (80803, 253864), (126932, 161606)]