8158720

素因数分解:

$2^9\times 5^1\times {\mathrm{3187}}^1$

素因数の和:3210

約数の個数: 40

約数和(自身を含む): 19567944

約数和(自身を除く): 11409224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 3187, 6374, 12748, 15935, 25496, 31870, 50992, 63740, 101984, 127480, 203968, 254960, 407936, 509920, 815872, 1019840, 1631744, 2039680, 4079360, 8158720]

約数ペア:

[(1, 8158720), (2, 4079360), (4, 2039680), (5, 1631744), (8, 1019840), (10, 815872), (16, 509920), (20, 407936), (32, 254960), (40, 203968), (64, 127480), (80, 101984), (128, 63740), (160, 50992), (256, 31870), (320, 25496), (512, 15935), (640, 12748), (1280, 6374), (2560, 3187)]