620160400

素因数分解:

$2^4\times 5^2\times {\mathrm{1550401}}^1$

素因数の和:1550419

約数の個数: 30

約数和(自身を含む): 1489936322

約数和(自身を除く): 869775922

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1550401, 3100802, 6201604, 7752005, 12403208, 15504010, 24806416, 31008020, 38760025, 62016040, 77520050, 124032080, 155040100, 310080200, 620160400]

約数ペア:

[(1, 620160400), (2, 310080200), (4, 155040100), (5, 124032080), (8, 77520050), (10, 62016040), (16, 38760025), (20, 31008020), (25, 24806416), (40, 15504010), (50, 12403208), (80, 7752005), (100, 6201604), (200, 3100802), (400, 1550401)]