421611340

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{32887}}^1$

素因数の和:33537

約数の個数: 24

約数和(自身を含む): 886792032

約数和(自身を除く): 465180692

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 32887, 65774, 131548, 164435, 328870, 657740, 21080567, 42161134, 84322268, 105402835, 210805670, 421611340]

約数ペア:

[(1, 421611340), (2, 210805670), (4, 105402835), (5, 84322268), (10, 42161134), (20, 21080567), (641, 657740), (1282, 328870), (2564, 164435), (3205, 131548), (6410, 65774), (12820, 32887)]