11887780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{601}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 26699904

約数和(自身を除く): 14812124

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 430, 460, 601, 860, 989, 1202, 1978, 2404, 3005, 3956, 4945, 6010, 9890, 12020, 13823, 19780, 25843, 27646, 51686, 55292, 69115, 103372, 129215, 138230, 258430, 276460, 516860, 594389, 1188778, 2377556, 2971945, 5943890, 11887780]

約数ペア:

[(1, 11887780), (2, 5943890), (4, 2971945), (5, 2377556), (10, 1188778), (20, 594389), (23, 516860), (43, 276460), (46, 258430), (86, 138230), (92, 129215), (115, 103372), (172, 69115), (215, 55292), (230, 51686), (430, 27646), (460, 25843), (601, 19780), (860, 13823), (989, 12020), (1202, 9890), (1978, 6010), (2404, 4945), (3005, 3956)]