2681420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{179}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 6531840

約数和(自身を除く): 3850420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 179, 214, 358, 428, 535, 716, 749, 895, 1070, 1253, 1498, 1790, 2140, 2506, 2996, 3580, 3745, 5012, 6265, 7490, 12530, 14980, 19153, 25060, 38306, 76612, 95765, 134071, 191530, 268142, 383060, 536284, 670355, 1340710, 2681420]

約数ペア:

[(1, 2681420), (2, 1340710), (4, 670355), (5, 536284), (7, 383060), (10, 268142), (14, 191530), (20, 134071), (28, 95765), (35, 76612), (70, 38306), (107, 25060), (140, 19153), (179, 14980), (214, 12530), (358, 7490), (428, 6265), (535, 5012), (716, 3745), (749, 3580), (895, 2996), (1070, 2506), (1253, 2140), (1498, 1790)]