81847870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{9397}}^1$

素因数の和:9484

約数の個数: 32

約数和(自身を含む): 161044128

約数和(自身を除く): 79196258

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 4355, 8710, 9397, 18794, 46985, 93970, 122161, 244322, 610805, 629599, 1221610, 1259198, 3147995, 6295990, 8184787, 16369574, 40923935, 81847870]

約数ペア:

[(1, 81847870), (2, 40923935), (5, 16369574), (10, 8184787), (13, 6295990), (26, 3147995), (65, 1259198), (67, 1221610), (130, 629599), (134, 610805), (335, 244322), (670, 122161), (871, 93970), (1742, 46985), (4355, 18794), (8710, 9397)]