20007240020

素因数分解:

$2^2\times 5^1\times {\mathrm{9949}}^1\times {\mathrm{100549}}^1$

素因数の和:110507

約数の個数: 24

約数和(自身を含む): 42019845000

約数和(自身を除く): 22012604980

約数列:

[1, 2, 4, 5, 10, 20, 9949, 19898, 39796, 49745, 99490, 100549, 198980, 201098, 402196, 502745, 1005490, 2010980, 1000362001, 2000724002, 4001448004, 5001810005, 10003620010, 20007240020]

約数ペア:

[(1, 20007240020), (2, 10003620010), (4, 5001810005), (5, 4001448004), (10, 2000724002), (20, 1000362001), (9949, 2010980), (19898, 1005490), (39796, 502745), (49745, 402196), (99490, 201098), (100549, 198980)]