220778888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{5821}}^1$

素因数の和:6269

約数の個数: 32

約数和(自身を含む): 452718720

約数和(自身を除く): 231939832

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 431, 862, 1724, 3448, 4741, 5821, 9482, 11642, 18964, 23284, 37928, 46568, 64031, 128062, 256124, 512248, 2508851, 5017702, 10035404, 20070808, 27597361, 55194722, 110389444, 220778888]

約数ペア:

[(1, 220778888), (2, 110389444), (4, 55194722), (8, 27597361), (11, 20070808), (22, 10035404), (44, 5017702), (88, 2508851), (431, 512248), (862, 256124), (1724, 128062), (3448, 64031), (4741, 46568), (5821, 37928), (9482, 23284), (11642, 18964)]