19386920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{69239}}^1$

素因数の和:69257

約数の個数: 32

約数和(自身を含む): 49852800

約数和(自身を除く): 30465880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 69239, 138478, 276956, 346195, 484673, 553912, 692390, 969346, 1384780, 1938692, 2423365, 2769560, 3877384, 4846730, 9693460, 19386920]

約数ペア:

[(1, 19386920), (2, 9693460), (4, 4846730), (5, 3877384), (7, 2769560), (8, 2423365), (10, 1938692), (14, 1384780), (20, 969346), (28, 692390), (35, 553912), (40, 484673), (56, 346195), (70, 276956), (140, 138478), (280, 69239)]