156618940

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 334236672

約数和(自身を除く): 177617732

約数列:

[1, 2, 4, 5, 10, 20, 127, 197, 254, 313, 394, 508, 626, 635, 788, 985, 1252, 1270, 1565, 1970, 2540, 3130, 3940, 6260, 25019, 39751, 50038, 61661, 79502, 100076, 123322, 125095, 159004, 198755, 246644, 250190, 308305, 397510, 500380, 616610, 795020, 1233220, 7830947, 15661894, 31323788, 39154735, 78309470, 156618940]

約数ペア:

[(1, 156618940), (2, 78309470), (4, 39154735), (5, 31323788), (10, 15661894), (20, 7830947), (127, 1233220), (197, 795020), (254, 616610), (313, 500380), (394, 397510), (508, 308305), (626, 250190), (635, 246644), (788, 198755), (985, 159004), (1252, 125095), (1270, 123322), (1565, 100076), (1970, 79502), (2540, 61661), (3130, 50038), (3940, 39751), (6260, 25019)]