138049240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{3547}}^1$

素因数の和:3704

約数の個数: 64

約数和(自身を含む): 357638400

約数和(自身を除く): 219589160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1946, 2780, 3547, 3892, 4865, 5560, 7094, 7784, 9730, 14188, 17735, 19460, 24829, 28376, 35470, 38920, 49658, 70940, 99316, 124145, 141880, 198632, 248290, 493033, 496580, 986066, 993160, 1972132, 2465165, 3451231, 3944264, 4930330, 6902462, 9860660, 13804924, 17256155, 19721320, 27609848, 34512310, 69024620, 138049240]

約数ペア:

[(1, 138049240), (2, 69024620), (4, 34512310), (5, 27609848), (7, 19721320), (8, 17256155), (10, 13804924), (14, 9860660), (20, 6902462), (28, 4930330), (35, 3944264), (40, 3451231), (56, 2465165), (70, 1972132), (139, 993160), (140, 986066), (278, 496580), (280, 493033), (556, 248290), (695, 198632), (973, 141880), (1112, 124145), (1390, 99316), (1946, 70940), (2780, 49658), (3547, 38920), (3892, 35470), (4865, 28376), (5560, 24829), (7094, 19460), (7784, 17735), (9730, 14188)]