821080400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2309}}^1$

素因数の和:2461

約数の個数: 120

約数和(自身を含む): 2273187840

約数和(自身を除く): 1452107440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 127, 140, 175, 200, 254, 280, 350, 400, 508, 560, 635, 700, 889, 1016, 1270, 1400, 1778, 2032, 2309, 2540, 2800, 3175, 3556, 4445, 4618, 5080, 6350, 7112, 8890, 9236, 10160, 11545, 12700, 14224, 16163, 17780, 18472, 22225, 23090, 25400, 32326, 35560, 36944, 44450, 46180, 50800, 57725, 64652, 71120, 80815, 88900, 92360, 115450, 129304, 161630, 177800, 184720, 230900, 258608, 293243, 323260, 355600, 404075, 461800, 586486, 646520, 808150, 923600, 1172972, 1293040, 1466215, 1616300, 2052701, 2345944, 2932430, 3232600, 4105402, 4691888, 5864860, 6465200, 7331075, 8210804, 10263505, 11729720, 14662150, 16421608, 20527010, 23459440, 29324300, 32843216, 41054020, 51317525, 58648600, 82108040, 102635050, 117297200, 164216080, 205270100, 410540200, 821080400]

約数ペア:

[(1, 821080400), (2, 410540200), (4, 205270100), (5, 164216080), (7, 117297200), (8, 102635050), (10, 82108040), (14, 58648600), (16, 51317525), (20, 41054020), (25, 32843216), (28, 29324300), (35, 23459440), (40, 20527010), (50, 16421608), (56, 14662150), (70, 11729720), (80, 10263505), (100, 8210804), (112, 7331075), (127, 6465200), (140, 5864860), (175, 4691888), (200, 4105402), (254, 3232600), (280, 2932430), (350, 2345944), (400, 2052701), (508, 1616300), (560, 1466215), (635, 1293040), (700, 1172972), (889, 923600), (1016, 808150), (1270, 646520), (1400, 586486), (1778, 461800), (2032, 404075), (2309, 355600), (2540, 323260), (2800, 293243), (3175, 258608), (3556, 230900), (4445, 184720), (4618, 177800), (5080, 161630), (6350, 129304), (7112, 115450), (8890, 92360), (9236, 88900), (10160, 80815), (11545, 71120), (12700, 64652), (14224, 57725), (16163, 50800), (17780, 46180), (18472, 44450), (22225, 36944), (23090, 35560), (25400, 32326)]