78745520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140617}}^1$

素因数の和:140637

約数の個数: 40

約数和(自身を含む): 209239584

約数和(自身を除く): 130494064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140617, 281234, 562468, 703085, 984319, 1124936, 1406170, 1968638, 2249872, 2812340, 3937276, 4921595, 5624680, 7874552, 9843190, 11249360, 15749104, 19686380, 39372760, 78745520]

約数ペア:

[(1, 78745520), (2, 39372760), (4, 19686380), (5, 15749104), (7, 11249360), (8, 9843190), (10, 7874552), (14, 5624680), (16, 4921595), (20, 3937276), (28, 2812340), (35, 2249872), (40, 1968638), (56, 1406170), (70, 1124936), (80, 984319), (112, 703085), (140, 562468), (280, 281234), (560, 140617)]