20287650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{211}}^1\times {\mathrm{641}}^1$

素因数の和:867

約数の個数: 48

約数和(自身を含む): 50630688

約数和(自身を除く): 30343038

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 211, 422, 633, 641, 1055, 1266, 1282, 1923, 2110, 3165, 3205, 3846, 5275, 6330, 6410, 9615, 10550, 15825, 16025, 19230, 31650, 32050, 48075, 96150, 135251, 270502, 405753, 676255, 811506, 1352510, 2028765, 3381275, 4057530, 6762550, 10143825, 20287650]

約数ペア:

[(1, 20287650), (2, 10143825), (3, 6762550), (5, 4057530), (6, 3381275), (10, 2028765), (15, 1352510), (25, 811506), (30, 676255), (50, 405753), (75, 270502), (150, 135251), (211, 96150), (422, 48075), (633, 32050), (641, 31650), (1055, 19230), (1266, 16025), (1282, 15825), (1923, 10550), (2110, 9615), (3165, 6410), (3205, 6330), (3846, 5275)]