13821440

素因数分解:

$2^9\times 5^1\times {\mathrm{5399}}^1$

素因数の和:5422

約数の個数: 40

約数和(自身を含む): 33145200

約数和(自身を除く): 19323760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 5399, 10798, 21596, 26995, 43192, 53990, 86384, 107980, 172768, 215960, 345536, 431920, 691072, 863840, 1382144, 1727680, 2764288, 3455360, 6910720, 13821440]

約数ペア:

[(1, 13821440), (2, 6910720), (4, 3455360), (5, 2764288), (8, 1727680), (10, 1382144), (16, 863840), (20, 691072), (32, 431920), (40, 345536), (64, 215960), (80, 172768), (128, 107980), (160, 86384), (256, 53990), (320, 43192), (512, 26995), (640, 21596), (1280, 10798), (2560, 5399)]