145086520

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{5641}}^1$

素因数の和:6295

約数の個数: 32

約数和(自身を含む): 327010320

約数和(自身を除く): 181923800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 5641, 6430, 11282, 12860, 22564, 25720, 28205, 45128, 56410, 112820, 225640, 3627163, 7254326, 14508652, 18135815, 29017304, 36271630, 72543260, 145086520]

約数ペア:

[(1, 145086520), (2, 72543260), (4, 36271630), (5, 29017304), (8, 18135815), (10, 14508652), (20, 7254326), (40, 3627163), (643, 225640), (1286, 112820), (2572, 56410), (3215, 45128), (5144, 28205), (5641, 25720), (6430, 22564), (11282, 12860)]