11781980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3659}}^1$

素因数の和:3698

約数の個数: 48

約数和(自身を含む): 29514240

約数和(自身を除く): 17732260

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, 1610, 3220, 3659, 7318, 14636, 18295, 25613, 36590, 51226, 73180, 84157, 102452, 128065, 168314, 256130, 336628, 420785, 512260, 589099, 841570, 1178198, 1683140, 2356396, 2945495, 5890990, 11781980]

約数ペア:

[(1, 11781980), (2, 5890990), (4, 2945495), (5, 2356396), (7, 1683140), (10, 1178198), (14, 841570), (20, 589099), (23, 512260), (28, 420785), (35, 336628), (46, 256130), (70, 168314), (92, 128065), (115, 102452), (140, 84157), (161, 73180), (230, 51226), (322, 36590), (460, 25613), (644, 18295), (805, 14636), (1610, 7318), (3220, 3659)]