78836680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151609}}^1$

素因数の和:151633

約数の個数: 32

約数和(自身を含む): 191028600

約数和(自身を除く): 112191920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151609, 303218, 606436, 758045, 1212872, 1516090, 1970917, 3032180, 3941834, 6064360, 7883668, 9854585, 15767336, 19709170, 39418340, 78836680]

約数ペア:

[(1, 78836680), (2, 39418340), (4, 19709170), (5, 15767336), (8, 9854585), (10, 7883668), (13, 6064360), (20, 3941834), (26, 3032180), (40, 1970917), (52, 1516090), (65, 1212872), (104, 758045), (130, 606436), (260, 303218), (520, 151609)]