20396650

素因数分解:

$2^1\times 5^2\times {\mathrm{503}}^1\times {\mathrm{811}}^1$

素因数の和:1326

約数の個数: 24

約数和(自身を含む): 38060064

約数和(自身を除く): 17663414

約数列:

[1, 2, 5, 10, 25, 50, 503, 811, 1006, 1622, 2515, 4055, 5030, 8110, 12575, 20275, 25150, 40550, 407933, 815866, 2039665, 4079330, 10198325, 20396650]

約数ペア:

[(1, 20396650), (2, 10198325), (5, 4079330), (10, 2039665), (25, 815866), (50, 407933), (503, 40550), (811, 25150), (1006, 20275), (1622, 12575), (2515, 8110), (4055, 5030)]