2013121720

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{308761}}^1$

素因数の和:308935

約数の個数: 32

約数和(自身を含む): 4557327120

約数和(自身を除く): 2544205400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 308761, 617522, 1235044, 1543805, 2470088, 3087610, 6175220, 12350440, 50328043, 100656086, 201312172, 251640215, 402624344, 503280430, 1006560860, 2013121720]

約数ペア:

[(1, 2013121720), (2, 1006560860), (4, 503280430), (5, 402624344), (8, 251640215), (10, 201312172), (20, 100656086), (40, 50328043), (163, 12350440), (326, 6175220), (652, 3087610), (815, 2470088), (1304, 1543805), (1630, 1235044), (3260, 617522), (6520, 308761)]