81908540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{585061}}^1$

素因数の和:585077

約数の個数: 24

約数和(自身を含む): 196580832

約数和(自身を除く): 114672292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 585061, 1170122, 2340244, 2925305, 4095427, 5850610, 8190854, 11701220, 16381708, 20477135, 40954270, 81908540]

約数ペア:

[(1, 81908540), (2, 40954270), (4, 20477135), (5, 16381708), (7, 11701220), (10, 8190854), (14, 5850610), (20, 4095427), (28, 2925305), (35, 2340244), (70, 1170122), (140, 585061)]