18813780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{823}}^1$

素因数の和:965

約数の個数: 72

約数和(自身を含む): 57587712

約数和(自身を除く): 38773932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 823, 1143, 1270, 1524, 1646, 1905, 2286, 2469, 2540, 3292, 3810, 4115, 4572, 4938, 5715, 7407, 7620, 8230, 9876, 11430, 12345, 14814, 16460, 22860, 24690, 29628, 37035, 49380, 74070, 104521, 148140, 209042, 313563, 418084, 522605, 627126, 940689, 1045210, 1254252, 1567815, 1881378, 2090420, 3135630, 3762756, 4703445, 6271260, 9406890, 18813780]

約数ペア:

[(1, 18813780), (2, 9406890), (3, 6271260), (4, 4703445), (5, 3762756), (6, 3135630), (9, 2090420), (10, 1881378), (12, 1567815), (15, 1254252), (18, 1045210), (20, 940689), (30, 627126), (36, 522605), (45, 418084), (60, 313563), (90, 209042), (127, 148140), (180, 104521), (254, 74070), (381, 49380), (508, 37035), (635, 29628), (762, 24690), (823, 22860), (1143, 16460), (1270, 14814), (1524, 12345), (1646, 11430), (1905, 9876), (2286, 8230), (2469, 7620), (2540, 7407), (3292, 5715), (3810, 4938), (4115, 4572)]