221498360

素因数分解:

$2^3\times 5^1\times {\mathrm{1481}}^1\times {\mathrm{3739}}^1$

素因数の和:5231

約数の個数: 32

約数和(自身を含む): 498841200

約数和(自身を除く): 277342840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1481, 2962, 3739, 5924, 7405, 7478, 11848, 14810, 14956, 18695, 29620, 29912, 37390, 59240, 74780, 149560, 5537459, 11074918, 22149836, 27687295, 44299672, 55374590, 110749180, 221498360]

約数ペア:

[(1, 221498360), (2, 110749180), (4, 55374590), (5, 44299672), (8, 27687295), (10, 22149836), (20, 11074918), (40, 5537459), (1481, 149560), (2962, 74780), (3739, 59240), (5924, 37390), (7405, 29912), (7478, 29620), (11848, 18695), (14810, 14956)]