2013321800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{205441}}^1$

素因数の和:205471

約数の個数: 72

約数和(自身を含む): 5445240210

約数和(自身を除く): 3431918410

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 9800, 205441, 410882, 821764, 1027205, 1438087, 1643528, 2054410, 2876174, 4108820, 5136025, 5752348, 7190435, 8217640, 10066609, 10272050, 11504696, 14380870, 20133218, 20544100, 28761740, 35952175, 40266436, 41088200, 50333045, 57523480, 71904350, 80532872, 100666090, 143808700, 201332180, 251665225, 287617400, 402664360, 503330450, 1006660900, 2013321800]

約数ペア:

[(1, 2013321800), (2, 1006660900), (4, 503330450), (5, 402664360), (7, 287617400), (8, 251665225), (10, 201332180), (14, 143808700), (20, 100666090), (25, 80532872), (28, 71904350), (35, 57523480), (40, 50333045), (49, 41088200), (50, 40266436), (56, 35952175), (70, 28761740), (98, 20544100), (100, 20133218), (140, 14380870), (175, 11504696), (196, 10272050), (200, 10066609), (245, 8217640), (280, 7190435), (350, 5752348), (392, 5136025), (490, 4108820), (700, 2876174), (980, 2054410), (1225, 1643528), (1400, 1438087), (1960, 1027205), (2450, 821764), (4900, 410882), (9800, 205441)]