81278418

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{28163}}^1$

素因数の和:28218

約数の個数: 32

約数和(自身を含む): 179798976

約数和(自身を除く): 98520558

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 222, 481, 962, 1443, 2886, 28163, 56326, 84489, 168978, 366119, 732238, 1042031, 1098357, 2084062, 2196714, 3126093, 6252186, 13546403, 27092806, 40639209, 81278418]

約数ペア:

[(1, 81278418), (2, 40639209), (3, 27092806), (6, 13546403), (13, 6252186), (26, 3126093), (37, 2196714), (39, 2084062), (74, 1098357), (78, 1042031), (111, 732238), (222, 366119), (481, 168978), (962, 84489), (1443, 56326), (2886, 28163)]