1389788260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{187303}}^1$

素因数の和:187372

約数の個数: 48

約数和(自身を含む): 3398443776

約数和(自身を除く): 2008655516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 187303, 374606, 749212, 936515, 1311121, 1873030, 2622242, 3746060, 5244484, 6555605, 9927059, 13111210, 19854118, 26222420, 39708236, 49635295, 69489413, 99270590, 138978826, 198541180, 277957652, 347447065, 694894130, 1389788260]

約数ペア:

[(1, 1389788260), (2, 694894130), (4, 347447065), (5, 277957652), (7, 198541180), (10, 138978826), (14, 99270590), (20, 69489413), (28, 49635295), (35, 39708236), (53, 26222420), (70, 19854118), (106, 13111210), (140, 9927059), (212, 6555605), (265, 5244484), (371, 3746060), (530, 2622242), (742, 1873030), (1060, 1311121), (1484, 936515), (1855, 749212), (3710, 374606), (7420, 187303)]