2107400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 5038740

約数和(自身を除く): 2931340

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 257, 328, 410, 514, 820, 1025, 1028, 1285, 1640, 2050, 2056, 2570, 4100, 5140, 6425, 8200, 10280, 10537, 12850, 21074, 25700, 42148, 51400, 52685, 84296, 105370, 210740, 263425, 421480, 526850, 1053700, 2107400]

約数ペア:

[(1, 2107400), (2, 1053700), (4, 526850), (5, 421480), (8, 263425), (10, 210740), (20, 105370), (25, 84296), (40, 52685), (41, 51400), (50, 42148), (82, 25700), (100, 21074), (164, 12850), (200, 10537), (205, 10280), (257, 8200), (328, 6425), (410, 5140), (514, 4100), (820, 2570), (1025, 2056), (1028, 2050), (1285, 1640)]