451780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{461}}^1$

素因数の和:484

約数の個数: 36

約数和(自身を含む): 1106028

約数和(自身を除く): 654248

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 461, 490, 922, 980, 1844, 2305, 3227, 4610, 6454, 9220, 12908, 16135, 22589, 32270, 45178, 64540, 90356, 112945, 225890, 451780]

約数ペア:

[(1, 451780), (2, 225890), (4, 112945), (5, 90356), (7, 64540), (10, 45178), (14, 32270), (20, 22589), (28, 16135), (35, 12908), (49, 9220), (70, 6454), (98, 4610), (140, 3227), (196, 2305), (245, 1844), (461, 980), (490, 922)]