681100

素因数分解:

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

素因数の和:167

約数の個数: 54

約数和(自身を含む): 1731660

約数和(自身を除く): 1050560

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 139, 140, 175, 196, 245, 278, 350, 490, 556, 695, 700, 973, 980, 1225, 1390, 1946, 2450, 2780, 3475, 3892, 4865, 4900, 6811, 6950, 9730, 13622, 13900, 19460, 24325, 27244, 34055, 48650, 68110, 97300, 136220, 170275, 340550, 681100]

約数ペア:

[(1, 681100), (2, 340550), (4, 170275), (5, 136220), (7, 97300), (10, 68110), (14, 48650), (20, 34055), (25, 27244), (28, 24325), (35, 19460), (49, 13900), (50, 13622), (70, 9730), (98, 6950), (100, 6811), (139, 4900), (140, 4865), (175, 3892), (196, 3475), (245, 2780), (278, 2450), (350, 1946), (490, 1390), (556, 1225), (695, 980), (700, 973)]