28798280

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2099}}^1$

素因数の和:2131

約数の個数: 64

約数和(自身を含む): 75600000

約数和(自身を除く): 46801720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2099, 2744, 3430, 4198, 6860, 8396, 10495, 13720, 14693, 16792, 20990, 29386, 41980, 58772, 73465, 83960, 102851, 117544, 146930, 205702, 293860, 411404, 514255, 587720, 719957, 822808, 1028510, 1439914, 2057020, 2879828, 3599785, 4114040, 5759656, 7199570, 14399140, 28798280]

約数ペア:

[(1, 28798280), (2, 14399140), (4, 7199570), (5, 5759656), (7, 4114040), (8, 3599785), (10, 2879828), (14, 2057020), (20, 1439914), (28, 1028510), (35, 822808), (40, 719957), (49, 587720), (56, 514255), (70, 411404), (98, 293860), (140, 205702), (196, 146930), (245, 117544), (280, 102851), (343, 83960), (392, 73465), (490, 58772), (686, 41980), (980, 29386), (1372, 20990), (1715, 16792), (1960, 14693), (2099, 13720), (2744, 10495), (3430, 8396), (4198, 6860)]