2194780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 5374656

約数和(自身を除く): 3179876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 257, 305, 427, 514, 610, 854, 1028, 1220, 1285, 1708, 1799, 2135, 2570, 3598, 4270, 5140, 7196, 8540, 8995, 15677, 17990, 31354, 35980, 62708, 78385, 109739, 156770, 219478, 313540, 438956, 548695, 1097390, 2194780]

約数ペア:

[(1, 2194780), (2, 1097390), (4, 548695), (5, 438956), (7, 313540), (10, 219478), (14, 156770), (20, 109739), (28, 78385), (35, 62708), (61, 35980), (70, 31354), (122, 17990), (140, 15677), (244, 8995), (257, 8540), (305, 7196), (427, 5140), (514, 4270), (610, 3598), (854, 2570), (1028, 2135), (1220, 1799), (1285, 1708)]