39193420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3943}}^1$

素因数の和:4030

約数の個数: 48

約数和(自身を含む): 95413248

約数和(自身を除く): 56219828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 3943, 4970, 7886, 9940, 15772, 19715, 27601, 39430, 55202, 78860, 110404, 138005, 276010, 279953, 552020, 559906, 1119812, 1399765, 1959671, 2799530, 3919342, 5599060, 7838684, 9798355, 19596710, 39193420]

約数ペア:

[(1, 39193420), (2, 19596710), (4, 9798355), (5, 7838684), (7, 5599060), (10, 3919342), (14, 2799530), (20, 1959671), (28, 1399765), (35, 1119812), (70, 559906), (71, 552020), (140, 279953), (142, 276010), (284, 138005), (355, 110404), (497, 78860), (710, 55202), (994, 39430), (1420, 27601), (1988, 19715), (2485, 15772), (3943, 9940), (4970, 7886)]