8561980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2659}}^1$

素因数の和:2698

約数の個数: 48

約数和(自身を含む): 21450240

約数和(自身を除く): 12888260

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, 2659, 3220, 5318, 10636, 13295, 18613, 26590, 37226, 53180, 61157, 74452, 93065, 122314, 186130, 244628, 305785, 372260, 428099, 611570, 856198, 1223140, 1712396, 2140495, 4280990, 8561980]

約数ペア:

[(1, 8561980), (2, 4280990), (4, 2140495), (5, 1712396), (7, 1223140), (10, 856198), (14, 611570), (20, 428099), (23, 372260), (28, 305785), (35, 244628), (46, 186130), (70, 122314), (92, 93065), (115, 74452), (140, 61157), (161, 53180), (230, 37226), (322, 26590), (460, 18613), (644, 13295), (805, 10636), (1610, 5318), (2659, 3220)]