20289910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4643}}^1$

素因数の和:4692

約数の個数: 32

約数和(自身を含む): 40124160

約数和(自身を除く): 19834250

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 4643, 9286, 23215, 46430, 88217, 106789, 176434, 213578, 441085, 533945, 882170, 1067890, 2028991, 4057982, 10144955, 20289910]

約数ペア:

[(1, 20289910), (2, 10144955), (5, 4057982), (10, 2028991), (19, 1067890), (23, 882170), (38, 533945), (46, 441085), (95, 213578), (115, 176434), (190, 106789), (230, 88217), (437, 46430), (874, 23215), (2185, 9286), (4370, 4643)]