78854980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{709}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 170331840

約数和(自身を除く): 91476860

約数列:

[1, 2, 4, 5, 10, 20, 67, 83, 134, 166, 268, 332, 335, 415, 670, 709, 830, 1340, 1418, 1660, 2836, 3545, 5561, 7090, 11122, 14180, 22244, 27805, 47503, 55610, 58847, 95006, 111220, 117694, 190012, 235388, 237515, 294235, 475030, 588470, 950060, 1176940, 3942749, 7885498, 15770996, 19713745, 39427490, 78854980]

約数ペア:

[(1, 78854980), (2, 39427490), (4, 19713745), (5, 15770996), (10, 7885498), (20, 3942749), (67, 1176940), (83, 950060), (134, 588470), (166, 475030), (268, 294235), (332, 237515), (335, 235388), (415, 190012), (670, 117694), (709, 111220), (830, 95006), (1340, 58847), (1418, 55610), (1660, 47503), (2836, 27805), (3545, 22244), (5561, 14180), (7090, 11122)]