63779500

素因数分解:

$2^2\times 5^3\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:859

約数の個数: 48

約数和(自身を含む): 140212800

約数和(自身を除く): 76433300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 199, 250, 398, 500, 641, 796, 995, 1282, 1990, 2564, 3205, 3980, 4975, 6410, 9950, 12820, 16025, 19900, 24875, 32050, 49750, 64100, 80125, 99500, 127559, 160250, 255118, 320500, 510236, 637795, 1275590, 2551180, 3188975, 6377950, 12755900, 15944875, 31889750, 63779500]

約数ペア:

[(1, 63779500), (2, 31889750), (4, 15944875), (5, 12755900), (10, 6377950), (20, 3188975), (25, 2551180), (50, 1275590), (100, 637795), (125, 510236), (199, 320500), (250, 255118), (398, 160250), (500, 127559), (641, 99500), (796, 80125), (995, 64100), (1282, 49750), (1990, 32050), (2564, 24875), (3205, 19900), (3980, 16025), (4975, 12820), (6410, 9950)]