164025220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{2143}}^1$

素因数の和:2284

約数の個数: 48

約数和(自身を含む): 356590080

約数和(自身を除く): 192564860

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 430, 445, 860, 890, 1780, 2143, 3827, 4286, 7654, 8572, 10715, 15308, 19135, 21430, 38270, 42860, 76540, 92149, 184298, 190727, 368596, 381454, 460745, 762908, 921490, 953635, 1842980, 1907270, 3814540, 8201261, 16402522, 32805044, 41006305, 82012610, 164025220]

約数ペア:

[(1, 164025220), (2, 82012610), (4, 41006305), (5, 32805044), (10, 16402522), (20, 8201261), (43, 3814540), (86, 1907270), (89, 1842980), (172, 953635), (178, 921490), (215, 762908), (356, 460745), (430, 381454), (445, 368596), (860, 190727), (890, 184298), (1780, 92149), (2143, 76540), (3827, 42860), (4286, 38270), (7654, 21430), (8572, 19135), (10715, 15308)]