20288990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5189}}^1$

素因数の和:5236

約数の個数: 32

約数和(自身を含む): 40357440

約数和(自身を除く): 20068450

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 5189, 10378, 25945, 51890, 88213, 119347, 176426, 238694, 441065, 596735, 882130, 1193470, 2028899, 4057798, 10144495, 20288990]

約数ペア:

[(1, 20288990), (2, 10144495), (5, 4057798), (10, 2028899), (17, 1193470), (23, 882130), (34, 596735), (46, 441065), (85, 238694), (115, 176426), (170, 119347), (230, 88213), (391, 51890), (782, 25945), (1955, 10378), (3910, 5189)]