6471440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1973}}^1$

素因数の和:2027

約数の個数: 40

約数和(自身を含む): 15420888

約数和(自身を除く): 8949448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 1973, 3280, 3946, 7892, 9865, 15784, 19730, 31568, 39460, 78920, 80893, 157840, 161786, 323572, 404465, 647144, 808930, 1294288, 1617860, 3235720, 6471440]

約数ペア:

[(1, 6471440), (2, 3235720), (4, 1617860), (5, 1294288), (8, 808930), (10, 647144), (16, 404465), (20, 323572), (40, 161786), (41, 157840), (80, 80893), (82, 78920), (164, 39460), (205, 31568), (328, 19730), (410, 15784), (656, 9865), (820, 7892), (1640, 3946), (1973, 3280)]