28287014980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{811}}^1\times {\mathrm{35591}}^1$

素因数の和:36425

約数の個数: 72

約数和(自身を含む): 69188285376

約数和(自身を除く): 40901270396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 811, 980, 1622, 3244, 4055, 5677, 8110, 11354, 16220, 22708, 28385, 35591, 39739, 56770, 71182, 79478, 113540, 142364, 158956, 177955, 198695, 249137, 355910, 397390, 498274, 711820, 794780, 996548, 1245685, 1743959, 2491370, 3487918, 4982740, 6975836, 8719795, 17439590, 28864301, 34879180, 57728602, 115457204, 144321505, 202050107, 288643010, 404100214, 577286020, 808200428, 1010250535, 1414350749, 2020501070, 2828701498, 4041002140, 5657402996, 7071753745, 14143507490, 28287014980]

約数ペア:

[(1, 28287014980), (2, 14143507490), (4, 7071753745), (5, 5657402996), (7, 4041002140), (10, 2828701498), (14, 2020501070), (20, 1414350749), (28, 1010250535), (35, 808200428), (49, 577286020), (70, 404100214), (98, 288643010), (140, 202050107), (196, 144321505), (245, 115457204), (490, 57728602), (811, 34879180), (980, 28864301), (1622, 17439590), (3244, 8719795), (4055, 6975836), (5677, 4982740), (8110, 3487918), (11354, 2491370), (16220, 1743959), (22708, 1245685), (28385, 996548), (35591, 794780), (39739, 711820), (56770, 498274), (71182, 397390), (79478, 355910), (113540, 249137), (142364, 198695), (158956, 177955)]