207967240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399937}}^1$

素因数の和:399961

約数の個数: 32

約数和(自身を含む): 503921880

約数和(自身を除く): 295954640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 399937, 799874, 1599748, 1999685, 3199496, 3999370, 5199181, 7998740, 10398362, 15997480, 20796724, 25995905, 41593448, 51991810, 103983620, 207967240]

約数ペア:

[(1, 207967240), (2, 103983620), (4, 51991810), (5, 41593448), (8, 25995905), (10, 20796724), (13, 15997480), (20, 10398362), (26, 7998740), (40, 5199181), (52, 3999370), (65, 3199496), (104, 1999685), (130, 1599748), (260, 799874), (520, 399937)]