28836340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110909}}^1$

素因数の和:110931

約数の個数: 24

約数和(自身を含む): 65215080

約数和(自身を除く): 36378740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 110909, 221818, 443636, 554545, 1109090, 1441817, 2218180, 2883634, 5767268, 7209085, 14418170, 28836340]

約数ペア:

[(1, 28836340), (2, 14418170), (4, 7209085), (5, 5767268), (10, 2883634), (13, 2218180), (20, 1441817), (26, 1109090), (52, 554545), (65, 443636), (130, 221818), (260, 110909)]