40808960

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{839}}^1$

素因数の和:881

約数の個数: 80

約数和(自身を含む): 103118400

約数和(自身を除く): 62309440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 839, 1216, 1280, 1520, 1678, 2432, 2560, 3040, 3356, 4195, 4864, 6080, 6712, 8390, 9728, 12160, 13424, 15941, 16780, 24320, 26848, 31882, 33560, 48640, 53696, 63764, 67120, 79705, 107392, 127528, 134240, 159410, 214784, 255056, 268480, 318820, 429568, 510112, 536960, 637640, 1020224, 1073920, 1275280, 2040448, 2147840, 2550560, 4080896, 5101120, 8161792, 10202240, 20404480, 40808960]

約数ペア:

[(1, 40808960), (2, 20404480), (4, 10202240), (5, 8161792), (8, 5101120), (10, 4080896), (16, 2550560), (19, 2147840), (20, 2040448), (32, 1275280), (38, 1073920), (40, 1020224), (64, 637640), (76, 536960), (80, 510112), (95, 429568), (128, 318820), (152, 268480), (160, 255056), (190, 214784), (256, 159410), (304, 134240), (320, 127528), (380, 107392), (512, 79705), (608, 67120), (640, 63764), (760, 53696), (839, 48640), (1216, 33560), (1280, 31882), (1520, 26848), (1678, 24320), (2432, 16780), (2560, 15941), (3040, 13424), (3356, 12160), (4195, 9728), (4864, 8390), (6080, 6712)]