51023600

素因数分解:

$2^4\times 5^2\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:858

約数の個数: 60

約数和(自身を含む): 123392400

約数和(自身を除く): 72368800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 199, 200, 398, 400, 641, 796, 995, 1282, 1592, 1990, 2564, 3184, 3205, 3980, 4975, 5128, 6410, 7960, 9950, 10256, 12820, 15920, 16025, 19900, 25640, 32050, 39800, 51280, 64100, 79600, 127559, 128200, 255118, 256400, 510236, 637795, 1020472, 1275590, 2040944, 2551180, 3188975, 5102360, 6377950, 10204720, 12755900, 25511800, 51023600]

約数ペア:

[(1, 51023600), (2, 25511800), (4, 12755900), (5, 10204720), (8, 6377950), (10, 5102360), (16, 3188975), (20, 2551180), (25, 2040944), (40, 1275590), (50, 1020472), (80, 637795), (100, 510236), (199, 256400), (200, 255118), (398, 128200), (400, 127559), (641, 79600), (796, 64100), (995, 51280), (1282, 39800), (1592, 32050), (1990, 25640), (2564, 19900), (3184, 16025), (3205, 15920), (3980, 12820), (4975, 10256), (5128, 9950), (6410, 7960)]