20101965100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{144307}}^1$

素因数の和:144527

約数の個数: 72

約数和(自身を含む): 50103737600

約数和(自身を除く): 30001772500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 199, 350, 398, 700, 796, 995, 1393, 1990, 2786, 3980, 4975, 5572, 6965, 9950, 13930, 19900, 27860, 34825, 69650, 139300, 144307, 288614, 577228, 721535, 1010149, 1443070, 2020298, 2886140, 3607675, 4040596, 5050745, 7215350, 10101490, 14430700, 20202980, 25253725, 28717093, 50507450, 57434186, 101014900, 114868372, 143585465, 201019651, 287170930, 402039302, 574341860, 717927325, 804078604, 1005098255, 1435854650, 2010196510, 2871709300, 4020393020, 5025491275, 10050982550, 20101965100]

約数ペア:

[(1, 20101965100), (2, 10050982550), (4, 5025491275), (5, 4020393020), (7, 2871709300), (10, 2010196510), (14, 1435854650), (20, 1005098255), (25, 804078604), (28, 717927325), (35, 574341860), (50, 402039302), (70, 287170930), (100, 201019651), (140, 143585465), (175, 114868372), (199, 101014900), (350, 57434186), (398, 50507450), (700, 28717093), (796, 25253725), (995, 20202980), (1393, 14430700), (1990, 10101490), (2786, 7215350), (3980, 5050745), (4975, 4040596), (5572, 3607675), (6965, 2886140), (9950, 2020298), (13930, 1443070), (19900, 1010149), (27860, 721535), (34825, 577228), (69650, 288614), (139300, 144307)]