20977140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18401}}^1$

素因数の和:18432

約数の個数: 48

約数和(自身を含む): 61830720

約数和(自身を除く): 40853580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18401, 36802, 55203, 73604, 92005, 110406, 184010, 220812, 276015, 349619, 368020, 552030, 699238, 1048857, 1104060, 1398476, 1748095, 2097714, 3496190, 4195428, 5244285, 6992380, 10488570, 20977140]

約数ペア:

[(1, 20977140), (2, 10488570), (3, 6992380), (4, 5244285), (5, 4195428), (6, 3496190), (10, 2097714), (12, 1748095), (15, 1398476), (19, 1104060), (20, 1048857), (30, 699238), (38, 552030), (57, 368020), (60, 349619), (76, 276015), (95, 220812), (114, 184010), (190, 110406), (228, 92005), (285, 73604), (380, 55203), (570, 36802), (1140, 18401)]