55278340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1987}}^1$

素因数の和:2116

約数の個数: 48

約数和(自身を含む): 126245952

約数和(自身を除く): 70967612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 107, 130, 214, 260, 428, 535, 1070, 1391, 1987, 2140, 2782, 3974, 5564, 6955, 7948, 9935, 13910, 19870, 25831, 27820, 39740, 51662, 103324, 129155, 212609, 258310, 425218, 516620, 850436, 1063045, 2126090, 2763917, 4252180, 5527834, 11055668, 13819585, 27639170, 55278340]

約数ペア:

[(1, 55278340), (2, 27639170), (4, 13819585), (5, 11055668), (10, 5527834), (13, 4252180), (20, 2763917), (26, 2126090), (52, 1063045), (65, 850436), (107, 516620), (130, 425218), (214, 258310), (260, 212609), (428, 129155), (535, 103324), (1070, 51662), (1391, 39740), (1987, 27820), (2140, 25831), (2782, 19870), (3974, 13910), (5564, 9935), (6955, 7948)]