20530300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 51524480

約数和(自身を除く): 30994180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 139, 140, 175, 211, 278, 350, 422, 556, 695, 700, 844, 973, 1055, 1390, 1477, 1946, 2110, 2780, 2954, 3475, 3892, 4220, 4865, 5275, 5908, 6950, 7385, 9730, 10550, 13900, 14770, 19460, 21100, 24325, 29329, 29540, 36925, 48650, 58658, 73850, 97300, 117316, 146645, 147700, 205303, 293290, 410606, 586580, 733225, 821212, 1026515, 1466450, 2053030, 2932900, 4106060, 5132575, 10265150, 20530300]

約数ペア:

[(1, 20530300), (2, 10265150), (4, 5132575), (5, 4106060), (7, 2932900), (10, 2053030), (14, 1466450), (20, 1026515), (25, 821212), (28, 733225), (35, 586580), (50, 410606), (70, 293290), (100, 205303), (139, 147700), (140, 146645), (175, 117316), (211, 97300), (278, 73850), (350, 58658), (422, 48650), (556, 36925), (695, 29540), (700, 29329), (844, 24325), (973, 21100), (1055, 19460), (1390, 14770), (1477, 13900), (1946, 10550), (2110, 9730), (2780, 7385), (2954, 6950), (3475, 5908), (3892, 5275), (4220, 4865)]