16444280

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 39070080

約数和(自身を除く): 22625800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 41, 74, 82, 148, 164, 185, 205, 271, 296, 328, 370, 410, 542, 740, 820, 1084, 1355, 1480, 1517, 1640, 2168, 2710, 3034, 5420, 6068, 7585, 10027, 10840, 11111, 12136, 15170, 20054, 22222, 30340, 40108, 44444, 50135, 55555, 60680, 80216, 88888, 100270, 111110, 200540, 222220, 401080, 411107, 444440, 822214, 1644428, 2055535, 3288856, 4111070, 8222140, 16444280]

約数ペア:

[(1, 16444280), (2, 8222140), (4, 4111070), (5, 3288856), (8, 2055535), (10, 1644428), (20, 822214), (37, 444440), (40, 411107), (41, 401080), (74, 222220), (82, 200540), (148, 111110), (164, 100270), (185, 88888), (205, 80216), (271, 60680), (296, 55555), (328, 50135), (370, 44444), (410, 40108), (542, 30340), (740, 22222), (820, 20054), (1084, 15170), (1355, 12136), (1480, 11111), (1517, 10840), (1640, 10027), (2168, 7585), (2710, 6068), (3034, 5420)]