21426400

素因数分解:

$2^5\times 5^2\times {\mathrm{26783}}^1$

素因数の和:26803

約数の個数: 36

約数和(自身を含む): 52309152

約数和(自身を除く): 30882752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26783, 53566, 107132, 133915, 214264, 267830, 428528, 535660, 669575, 857056, 1071320, 1339150, 2142640, 2678300, 4285280, 5356600, 10713200, 21426400]

約数ペア:

[(1, 21426400), (2, 10713200), (4, 5356600), (5, 4285280), (8, 2678300), (10, 2142640), (16, 1339150), (20, 1071320), (25, 857056), (32, 669575), (40, 535660), (50, 428528), (80, 267830), (100, 214264), (160, 133915), (200, 107132), (400, 53566), (800, 26783)]