388512860

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1\times {\mathrm{401}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 825424992

約数和(自身を除く): 436912132

約数列:

[1, 2, 4, 5, 10, 20, 193, 251, 386, 401, 502, 772, 802, 965, 1004, 1255, 1604, 1930, 2005, 2510, 3860, 4010, 5020, 8020, 48443, 77393, 96886, 100651, 154786, 193772, 201302, 242215, 309572, 386965, 402604, 484430, 503255, 773930, 968860, 1006510, 1547860, 2013020, 19425643, 38851286, 77702572, 97128215, 194256430, 388512860]

約数ペア:

[(1, 388512860), (2, 194256430), (4, 97128215), (5, 77702572), (10, 38851286), (20, 19425643), (193, 2013020), (251, 1547860), (386, 1006510), (401, 968860), (502, 773930), (772, 503255), (802, 484430), (965, 402604), (1004, 386965), (1255, 309572), (1604, 242215), (1930, 201302), (2005, 193772), (2510, 154786), (3860, 100651), (4010, 96886), (5020, 77393), (8020, 48443)]