28282220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{431}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 63358848

約数和(自身を除く): 35076628

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 193, 340, 386, 431, 772, 862, 965, 1724, 1930, 2155, 3281, 3860, 4310, 6562, 7327, 8620, 13124, 14654, 16405, 29308, 32810, 36635, 65620, 73270, 83183, 146540, 166366, 332732, 415915, 831830, 1414111, 1663660, 2828222, 5656444, 7070555, 14141110, 28282220]

約数ペア:

[(1, 28282220), (2, 14141110), (4, 7070555), (5, 5656444), (10, 2828222), (17, 1663660), (20, 1414111), (34, 831830), (68, 415915), (85, 332732), (170, 166366), (193, 146540), (340, 83183), (386, 73270), (431, 65620), (772, 36635), (862, 32810), (965, 29308), (1724, 16405), (1930, 14654), (2155, 13124), (3281, 8620), (3860, 7327), (4310, 6562)]