6440420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{257}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 15603840

約数和(自身を除く): 9163420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 257, 358, 514, 716, 895, 1028, 1253, 1285, 1790, 1799, 2506, 2570, 3580, 3598, 5012, 5140, 6265, 7196, 8995, 12530, 17990, 25060, 35980, 46003, 92006, 184012, 230015, 322021, 460030, 644042, 920060, 1288084, 1610105, 3220210, 6440420]

約数ペア:

[(1, 6440420), (2, 3220210), (4, 1610105), (5, 1288084), (7, 920060), (10, 644042), (14, 460030), (20, 322021), (28, 230015), (35, 184012), (70, 92006), (140, 46003), (179, 35980), (257, 25060), (358, 17990), (514, 12530), (716, 8995), (895, 7196), (1028, 6265), (1253, 5140), (1285, 5012), (1790, 3598), (1799, 3580), (2506, 2570)]