81036760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{289417}}^1$

素因数の和:289435

約数の個数: 32

約数和(自身を含む): 208380960

約数和(自身を除く): 127344200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 289417, 578834, 1157668, 1447085, 2025919, 2315336, 2894170, 4051838, 5788340, 8103676, 10129595, 11576680, 16207352, 20259190, 40518380, 81036760]

約数ペア:

[(1, 81036760), (2, 40518380), (4, 20259190), (5, 16207352), (7, 11576680), (8, 10129595), (10, 8103676), (14, 5788340), (20, 4051838), (28, 2894170), (35, 2315336), (40, 2025919), (56, 1447085), (70, 1157668), (140, 578834), (280, 289417)]