4987780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1549}}^1$

素因数の和:1588

約数の個数: 48

約数和(自身を含む): 12499200

約数和(自身を除く): 7511420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1549, 1610, 3098, 3220, 6196, 7745, 10843, 15490, 21686, 30980, 35627, 43372, 54215, 71254, 108430, 142508, 178135, 216860, 249389, 356270, 498778, 712540, 997556, 1246945, 2493890, 4987780]

約数ペア:

[(1, 4987780), (2, 2493890), (4, 1246945), (5, 997556), (7, 712540), (10, 498778), (14, 356270), (20, 249389), (23, 216860), (28, 178135), (35, 142508), (46, 108430), (70, 71254), (92, 54215), (115, 43372), (140, 35627), (161, 30980), (230, 21686), (322, 15490), (460, 10843), (644, 7745), (805, 6196), (1549, 3220), (1610, 3098)]