20218842700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{207799}}^1$

素因数の和:207959

約数の個数: 72

約数和(自身を含む): 50503712000

約数和(自身を除く): 30284869300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 139, 140, 175, 278, 350, 556, 695, 700, 973, 1390, 1946, 2780, 3475, 3892, 4865, 6950, 9730, 13900, 19460, 24325, 48650, 97300, 207799, 415598, 831196, 1038995, 1454593, 2077990, 2909186, 4155980, 5194975, 5818372, 7272965, 10389950, 14545930, 20779900, 28884061, 29091860, 36364825, 57768122, 72729650, 115536244, 144420305, 145459300, 202188427, 288840610, 404376854, 577681220, 722101525, 808753708, 1010942135, 1444203050, 2021884270, 2888406100, 4043768540, 5054710675, 10109421350, 20218842700]

約数ペア:

[(1, 20218842700), (2, 10109421350), (4, 5054710675), (5, 4043768540), (7, 2888406100), (10, 2021884270), (14, 1444203050), (20, 1010942135), (25, 808753708), (28, 722101525), (35, 577681220), (50, 404376854), (70, 288840610), (100, 202188427), (139, 145459300), (140, 144420305), (175, 115536244), (278, 72729650), (350, 57768122), (556, 36364825), (695, 29091860), (700, 28884061), (973, 20779900), (1390, 14545930), (1946, 10389950), (2780, 7272965), (3475, 5818372), (3892, 5194975), (4865, 4155980), (6950, 2909186), (9730, 2077990), (13900, 1454593), (19460, 1038995), (24325, 831196), (48650, 415598), (97300, 207799)]