17991890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{8863}}^1$

素因数の和:8906

約数の個数: 32

約数和(自身を含む): 38292480

約数和(自身を除く): 20300590

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 8863, 17726, 44315, 62041, 88630, 124082, 257027, 310205, 514054, 620410, 1285135, 1799189, 2570270, 3598378, 8995945, 17991890]

約数ペア:

[(1, 17991890), (2, 8995945), (5, 3598378), (7, 2570270), (10, 1799189), (14, 1285135), (29, 620410), (35, 514054), (58, 310205), (70, 257027), (145, 124082), (203, 88630), (290, 62041), (406, 44315), (1015, 17726), (2030, 8863)]