20896787480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{743129}}^1$

素因数の和:743196

約数の個数: 64

約数和(自身を含む): 50830092000

約数和(自身を除く): 29933304520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 740, 760, 1406, 1480, 2812, 3515, 5624, 7030, 14060, 28120, 743129, 1486258, 2972516, 3715645, 5945032, 7431290, 14119451, 14862580, 27495773, 28238902, 29725160, 54991546, 56477804, 70597255, 109983092, 112955608, 137478865, 141194510, 219966184, 274957730, 282389020, 522419687, 549915460, 564778040, 1044839374, 1099830920, 2089678748, 2612098435, 4179357496, 5224196870, 10448393740, 20896787480]

約数ペア:

[(1, 20896787480), (2, 10448393740), (4, 5224196870), (5, 4179357496), (8, 2612098435), (10, 2089678748), (19, 1099830920), (20, 1044839374), (37, 564778040), (38, 549915460), (40, 522419687), (74, 282389020), (76, 274957730), (95, 219966184), (148, 141194510), (152, 137478865), (185, 112955608), (190, 109983092), (296, 70597255), (370, 56477804), (380, 54991546), (703, 29725160), (740, 28238902), (760, 27495773), (1406, 14862580), (1480, 14119451), (2812, 7431290), (3515, 5945032), (5624, 3715645), (7030, 2972516), (14060, 1486258), (28120, 743129)]