21218200

素因数分解:

$2^3\times 5^2\times {\mathrm{277}}^1\times {\mathrm{383}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 49639680

約数和(自身を除く): 28421480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 277, 383, 554, 766, 1108, 1385, 1532, 1915, 2216, 2770, 3064, 3830, 5540, 6925, 7660, 9575, 11080, 13850, 15320, 19150, 27700, 38300, 55400, 76600, 106091, 212182, 424364, 530455, 848728, 1060910, 2121820, 2652275, 4243640, 5304550, 10609100, 21218200]

約数ペア:

[(1, 21218200), (2, 10609100), (4, 5304550), (5, 4243640), (8, 2652275), (10, 2121820), (20, 1060910), (25, 848728), (40, 530455), (50, 424364), (100, 212182), (200, 106091), (277, 76600), (383, 55400), (554, 38300), (766, 27700), (1108, 19150), (1385, 15320), (1532, 13850), (1915, 11080), (2216, 9575), (2770, 7660), (3064, 6925), (3830, 5540)]