18870416

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{607}}^1$

素因数の和:711

約数の個数: 40

約数和(自身を含む): 38449920

約数和(自身を除く): 19579504

約数列:

[1, 2, 4, 8, 16, 29, 58, 67, 116, 134, 232, 268, 464, 536, 607, 1072, 1214, 1943, 2428, 3886, 4856, 7772, 9712, 15544, 17603, 31088, 35206, 40669, 70412, 81338, 140824, 162676, 281648, 325352, 650704, 1179401, 2358802, 4717604, 9435208, 18870416]

約数ペア:

[(1, 18870416), (2, 9435208), (4, 4717604), (8, 2358802), (16, 1179401), (29, 650704), (58, 325352), (67, 281648), (116, 162676), (134, 140824), (232, 81338), (268, 70412), (464, 40669), (536, 35206), (607, 31088), (1072, 17603), (1214, 15544), (1943, 9712), (2428, 7772), (3886, 4856)]