1620380576

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{643}}^1\times {\mathrm{1291}}^1$

素因数の和:2005

約数の個数: 48

約数和(自身を含む): 3249979488

約数和(自身を除く): 1629598912

約数列:

[1, 2, 4, 8, 16, 32, 61, 122, 244, 488, 643, 976, 1286, 1291, 1952, 2572, 2582, 5144, 5164, 10288, 10328, 20576, 20656, 39223, 41312, 78446, 78751, 156892, 157502, 313784, 315004, 627568, 630008, 830113, 1255136, 1260016, 1660226, 2520032, 3320452, 6640904, 13281808, 26563616, 50636893, 101273786, 202547572, 405095144, 810190288, 1620380576]

約数ペア:

[(1, 1620380576), (2, 810190288), (4, 405095144), (8, 202547572), (16, 101273786), (32, 50636893), (61, 26563616), (122, 13281808), (244, 6640904), (488, 3320452), (643, 2520032), (976, 1660226), (1286, 1260016), (1291, 1255136), (1952, 830113), (2572, 630008), (2582, 627568), (5144, 315004), (5164, 313784), (10288, 157502), (10328, 156892), (20576, 78751), (20656, 78446), (39223, 41312)]