28440412

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7103}}^1$

素因数の和:7138

約数の個数: 48

約数和(自身を含む): 66834432

約数和(自身を除く): 38394020

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 7103, 14206, 28412, 49721, 78133, 92339, 99442, 156266, 184678, 198884, 312532, 369356, 546931, 646373, 1015729, 1093862, 1292746, 2031458, 2187724, 2585492, 4062916, 7110103, 14220206, 28440412]

約数ペア:

[(1, 28440412), (2, 14220206), (4, 7110103), (7, 4062916), (11, 2585492), (13, 2187724), (14, 2031458), (22, 1292746), (26, 1093862), (28, 1015729), (44, 646373), (52, 546931), (77, 369356), (91, 312532), (143, 198884), (154, 184678), (182, 156266), (286, 99442), (308, 92339), (364, 78133), (572, 49721), (1001, 28412), (2002, 14206), (4004, 7103)]