12421420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 28740096

約数和(自身を除く): 16318676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 431, 524, 655, 862, 1310, 1441, 1724, 2155, 2620, 2882, 4310, 4741, 5764, 7205, 8620, 9482, 14410, 18964, 23705, 28820, 47410, 56461, 94820, 112922, 225844, 282305, 564610, 621071, 1129220, 1242142, 2484284, 3105355, 6210710, 12421420]

約数ペア:

[(1, 12421420), (2, 6210710), (4, 3105355), (5, 2484284), (10, 1242142), (11, 1129220), (20, 621071), (22, 564610), (44, 282305), (55, 225844), (110, 112922), (131, 94820), (220, 56461), (262, 47410), (431, 28820), (524, 23705), (655, 18964), (862, 14410), (1310, 9482), (1441, 8620), (1724, 7205), (2155, 5764), (2620, 4741), (2882, 4310)]