221468740

素因数分解:

$2^2\times 5^1\times {\mathrm{1481}}^1\times {\mathrm{7477}}^1$

素因数の和:8967

約数の個数: 24

約数和(自身を含む): 465460632

約数和(自身を除く): 243991892

約数列:

[1, 2, 4, 5, 10, 20, 1481, 2962, 5924, 7405, 7477, 14810, 14954, 29620, 29908, 37385, 74770, 149540, 11073437, 22146874, 44293748, 55367185, 110734370, 221468740]

約数ペア:

[(1, 221468740), (2, 110734370), (4, 55367185), (5, 44293748), (10, 22146874), (20, 11073437), (1481, 149540), (2962, 74770), (5924, 37385), (7405, 29908), (7477, 29620), (14810, 14954)]