621460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 1564416

約数和(自身を除く): 942956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 193, 230, 322, 386, 460, 644, 772, 805, 965, 1351, 1610, 1930, 2702, 3220, 3860, 4439, 5404, 6755, 8878, 13510, 17756, 22195, 27020, 31073, 44390, 62146, 88780, 124292, 155365, 310730, 621460]

約数ペア:

[(1, 621460), (2, 310730), (4, 155365), (5, 124292), (7, 88780), (10, 62146), (14, 44390), (20, 31073), (23, 27020), (28, 22195), (35, 17756), (46, 13510), (70, 8878), (92, 6755), (115, 5404), (140, 4439), (161, 3860), (193, 3220), (230, 2702), (322, 1930), (386, 1610), (460, 1351), (644, 965), (772, 805)]