72438380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{517417}}^1$

素因数の和:517433

約数の個数: 24

約数和(自身を含む): 173852448

約数和(自身を除く): 101414068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 517417, 1034834, 2069668, 2587085, 3621919, 5174170, 7243838, 10348340, 14487676, 18109595, 36219190, 72438380]

約数ペア:

[(1, 72438380), (2, 36219190), (4, 18109595), (5, 14487676), (7, 10348340), (10, 7243838), (14, 5174170), (20, 3621919), (28, 2587085), (35, 2069668), (70, 1034834), (140, 517417)]