81448710

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1949}}^1$

素因数の和:2165

約数の個数: 64

約数和(自身を含む): 224640000

約数和(自身を除く): 143191290

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 199, 210, 398, 597, 995, 1194, 1393, 1949, 1990, 2786, 2985, 3898, 4179, 5847, 5970, 6965, 8358, 9745, 11694, 13643, 13930, 19490, 20895, 27286, 29235, 40929, 41790, 58470, 68215, 81858, 136430, 204645, 387851, 409290, 775702, 1163553, 1939255, 2327106, 2714957, 3878510, 5429914, 5817765, 8144871, 11635530, 13574785, 16289742, 27149570, 40724355, 81448710]

約数ペア:

[(1, 81448710), (2, 40724355), (3, 27149570), (5, 16289742), (6, 13574785), (7, 11635530), (10, 8144871), (14, 5817765), (15, 5429914), (21, 3878510), (30, 2714957), (35, 2327106), (42, 1939255), (70, 1163553), (105, 775702), (199, 409290), (210, 387851), (398, 204645), (597, 136430), (995, 81858), (1194, 68215), (1393, 58470), (1949, 41790), (1990, 40929), (2786, 29235), (2985, 27286), (3898, 20895), (4179, 19490), (5847, 13930), (5970, 13643), (6965, 11694), (8358, 9745)]