28436480

素因数分解:

$2^{11}\times 5^1\times {\mathrm{2777}}^1$

素因数の和:2804

約数の個数: 48

約数和(自身を含む): 68255460

約数和(自身を除く): 39818980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 2777, 5120, 5554, 10240, 11108, 13885, 22216, 27770, 44432, 55540, 88864, 111080, 177728, 222160, 355456, 444320, 710912, 888640, 1421824, 1777280, 2843648, 3554560, 5687296, 7109120, 14218240, 28436480]

約数ペア:

[(1, 28436480), (2, 14218240), (4, 7109120), (5, 5687296), (8, 3554560), (10, 2843648), (16, 1777280), (20, 1421824), (32, 888640), (40, 710912), (64, 444320), (80, 355456), (128, 222160), (160, 177728), (256, 111080), (320, 88864), (512, 55540), (640, 44432), (1024, 27770), (1280, 22216), (2048, 13885), (2560, 11108), (2777, 10240), (5120, 5554)]