138373865

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 212889600

約数和(自身を除く): 74515735

約数列:

[1, 5, 7, 19, 23, 35, 83, 95, 109, 115, 133, 161, 415, 437, 545, 581, 665, 763, 805, 1577, 1909, 2071, 2185, 2507, 2905, 3059, 3815, 7885, 9047, 9545, 10355, 11039, 12535, 13363, 14497, 15295, 17549, 36271, 45235, 47633, 55195, 63329, 66815, 72485, 87745, 171893, 181355, 208081, 238165, 253897, 316645, 333431, 859465, 1040405, 1203251, 1269485, 1456567, 1667155, 3953539, 6016255, 7282835, 19767695, 27674773, 138373865]

約数ペア:

[(1, 138373865), (5, 27674773), (7, 19767695), (19, 7282835), (23, 6016255), (35, 3953539), (83, 1667155), (95, 1456567), (109, 1269485), (115, 1203251), (133, 1040405), (161, 859465), (415, 333431), (437, 316645), (545, 253897), (581, 238165), (665, 208081), (763, 181355), (805, 171893), (1577, 87745), (1909, 72485), (2071, 66815), (2185, 63329), (2507, 55195), (2905, 47633), (3059, 45235), (3815, 36271), (7885, 17549), (9047, 15295), (9545, 14497), (10355, 13363), (11039, 12535)]