81278835

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{1873}}^1$

素因数の和:2155

約数の個数: 32

約数和(自身を含む): 142483968

約数和(自身を除く): 61205133

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 263, 789, 1315, 1873, 2893, 3945, 5619, 8679, 9365, 14465, 20603, 28095, 43395, 61809, 103015, 309045, 492599, 1477797, 2462995, 5418589, 7388985, 16255767, 27092945, 81278835]

約数ペア:

[(1, 81278835), (3, 27092945), (5, 16255767), (11, 7388985), (15, 5418589), (33, 2462995), (55, 1477797), (165, 492599), (263, 309045), (789, 103015), (1315, 61809), (1873, 43395), (2893, 28095), (3945, 20603), (5619, 14465), (8679, 9365)]