71920980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{133187}}^1$

素因数の和:133205

約数の個数: 48

約数和(自身を含む): 223755840

約数和(自身を除く): 151834860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 133187, 266374, 399561, 532748, 665935, 799122, 1198683, 1331870, 1598244, 1997805, 2397366, 2663740, 3596049, 3995610, 4794732, 5993415, 7192098, 7991220, 11986830, 14384196, 17980245, 23973660, 35960490, 71920980]

約数ペア:

[(1, 71920980), (2, 35960490), (3, 23973660), (4, 17980245), (5, 14384196), (6, 11986830), (9, 7991220), (10, 7192098), (12, 5993415), (15, 4794732), (18, 3995610), (20, 3596049), (27, 2663740), (30, 2397366), (36, 1997805), (45, 1598244), (54, 1331870), (60, 1198683), (90, 799122), (108, 665935), (135, 532748), (180, 399561), (270, 266374), (540, 133187)]