81806380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{240607}}^1$

素因数の和:240633

約数の個数: 24

約数和(自身を含む): 181899648

約数和(自身を除く): 100093268

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 240607, 481214, 962428, 1203035, 2406070, 4090319, 4812140, 8180638, 16361276, 20451595, 40903190, 81806380]

約数ペア:

[(1, 81806380), (2, 40903190), (4, 20451595), (5, 16361276), (10, 8180638), (17, 4812140), (20, 4090319), (34, 2406070), (68, 1203035), (85, 962428), (170, 481214), (340, 240607)]