209743240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{749083}}^1$

素因数の和:749101

約数の個数: 32

約数和(自身を含む): 539340480

約数和(自身を除く): 329597240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 749083, 1498166, 2996332, 3745415, 5243581, 5992664, 7490830, 10487162, 14981660, 20974324, 26217905, 29963320, 41948648, 52435810, 104871620, 209743240]

約数ペア:

[(1, 209743240), (2, 104871620), (4, 52435810), (5, 41948648), (7, 29963320), (8, 26217905), (10, 20974324), (14, 14981660), (20, 10487162), (28, 7490830), (35, 5992664), (40, 5243581), (56, 3745415), (70, 2996332), (140, 1498166), (280, 749083)]