90216140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{644401}}^1$

素因数の和:644417

約数の個数: 24

約数和(自身を含む): 216519072

約数和(自身を除く): 126302932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 644401, 1288802, 2577604, 3222005, 4510807, 6444010, 9021614, 12888020, 18043228, 22554035, 45108070, 90216140]

約数ペア:

[(1, 90216140), (2, 45108070), (4, 22554035), (5, 18043228), (7, 12888020), (10, 9021614), (14, 6444010), (20, 4510807), (28, 3222005), (35, 2577604), (70, 1288802), (140, 644401)]