28226380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1193}}^1$

素因数の和:1235

約数の個数: 72

約数和(自身を含む): 73416672

約数和(自身を除く): 45190292

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1193, 1690, 1820, 2366, 2386, 3380, 4732, 4772, 5915, 5965, 8351, 11830, 11930, 15509, 16702, 23660, 23860, 31018, 33404, 41755, 62036, 77545, 83510, 108563, 155090, 167020, 201617, 217126, 310180, 403234, 434252, 542815, 806468, 1008085, 1085630, 1411319, 2016170, 2171260, 2822638, 4032340, 5645276, 7056595, 14113190, 28226380]

約数ペア:

[(1, 28226380), (2, 14113190), (4, 7056595), (5, 5645276), (7, 4032340), (10, 2822638), (13, 2171260), (14, 2016170), (20, 1411319), (26, 1085630), (28, 1008085), (35, 806468), (52, 542815), (65, 434252), (70, 403234), (91, 310180), (130, 217126), (140, 201617), (169, 167020), (182, 155090), (260, 108563), (338, 83510), (364, 77545), (455, 62036), (676, 41755), (845, 33404), (910, 31018), (1183, 23860), (1193, 23660), (1690, 16702), (1820, 15509), (2366, 11930), (2386, 11830), (3380, 8351), (4732, 5965), (4772, 5915)]