15398840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6311}}^1$

素因数の和:6383

約数の個数: 32

約数和(自身を含む): 35220960

約数和(自身を除く): 19822120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 6311, 12622, 25244, 31555, 50488, 63110, 126220, 252440, 384971, 769942, 1539884, 1924855, 3079768, 3849710, 7699420, 15398840]

約数ペア:

[(1, 15398840), (2, 7699420), (4, 3849710), (5, 3079768), (8, 1924855), (10, 1539884), (20, 769942), (40, 384971), (61, 252440), (122, 126220), (244, 63110), (305, 50488), (488, 31555), (610, 25244), (1220, 12622), (2440, 6311)]