28111405

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1$

素因数の和:825

約数の個数: 32

約数和(自身を含む): 41140224

約数和(自身を除く): 13028819

約数列:

[1, 5, 7, 23, 35, 47, 115, 161, 235, 329, 743, 805, 1081, 1645, 3715, 5201, 5405, 7567, 17089, 26005, 34921, 37835, 85445, 119623, 174605, 244447, 598115, 803183, 1222235, 4015915, 5622281, 28111405]

約数ペア:

[(1, 28111405), (5, 5622281), (7, 4015915), (23, 1222235), (35, 803183), (47, 598115), (115, 244447), (161, 174605), (235, 119623), (329, 85445), (743, 37835), (805, 34921), (1081, 26005), (1645, 17089), (3715, 7567), (5201, 5405)]