66697072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{320659}}^1$

素因数の和:320680

約数の個数: 20

約数和(自身を含む): 139166440

約数和(自身を除く): 72469368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 320659, 641318, 1282636, 2565272, 4168567, 5130544, 8337134, 16674268, 33348536, 66697072]

約数ペア:

[(1, 66697072), (2, 33348536), (4, 16674268), (8, 8337134), (13, 5130544), (16, 4168567), (26, 2565272), (52, 1282636), (104, 641318), (208, 320659)]