83321960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 193596480

約数和(自身を除く): 110274520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 193, 215, 251, 344, 386, 430, 502, 772, 860, 965, 1004, 1255, 1544, 1720, 1930, 2008, 2510, 3860, 5020, 7720, 8299, 10040, 10793, 16598, 21586, 33196, 41495, 43172, 48443, 53965, 66392, 82990, 86344, 96886, 107930, 165980, 193772, 215860, 242215, 331960, 387544, 431720, 484430, 968860, 1937720, 2083049, 4166098, 8332196, 10415245, 16664392, 20830490, 41660980, 83321960]

約数ペア:

[(1, 83321960), (2, 41660980), (4, 20830490), (5, 16664392), (8, 10415245), (10, 8332196), (20, 4166098), (40, 2083049), (43, 1937720), (86, 968860), (172, 484430), (193, 431720), (215, 387544), (251, 331960), (344, 242215), (386, 215860), (430, 193772), (502, 165980), (772, 107930), (860, 96886), (965, 86344), (1004, 82990), (1255, 66392), (1544, 53965), (1720, 48443), (1930, 43172), (2008, 41495), (2510, 33196), (3860, 21586), (5020, 16598), (7720, 10793), (8299, 10040)]