19463780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19861}}^1$

素因数の和:19884

約数の個数: 36

約数和(自身を含む): 47549628

約数和(自身を除く): 28085848

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19861, 39722, 79444, 99305, 139027, 198610, 278054, 397220, 556108, 695135, 973189, 1390270, 1946378, 2780540, 3892756, 4865945, 9731890, 19463780]

約数ペア:

[(1, 19463780), (2, 9731890), (4, 4865945), (5, 3892756), (7, 2780540), (10, 1946378), (14, 1390270), (20, 973189), (28, 695135), (35, 556108), (49, 397220), (70, 278054), (98, 198610), (140, 139027), (196, 99305), (245, 79444), (490, 39722), (980, 19861)]