28877000

素因数分解:

$2^3\times 5^3\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 68739840

約数和(自身を除く): 39862840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 125, 134, 200, 250, 268, 335, 431, 500, 536, 670, 862, 1000, 1340, 1675, 1724, 2155, 2680, 3350, 3448, 4310, 6700, 8375, 8620, 10775, 13400, 16750, 17240, 21550, 28877, 33500, 43100, 53875, 57754, 67000, 86200, 107750, 115508, 144385, 215500, 231016, 288770, 431000, 577540, 721925, 1155080, 1443850, 2887700, 3609625, 5775400, 7219250, 14438500, 28877000]

約数ペア:

[(1, 28877000), (2, 14438500), (4, 7219250), (5, 5775400), (8, 3609625), (10, 2887700), (20, 1443850), (25, 1155080), (40, 721925), (50, 577540), (67, 431000), (100, 288770), (125, 231016), (134, 215500), (200, 144385), (250, 115508), (268, 107750), (335, 86200), (431, 67000), (500, 57754), (536, 53875), (670, 43100), (862, 33500), (1000, 28877), (1340, 21550), (1675, 17240), (1724, 16750), (2155, 13400), (2680, 10775), (3350, 8620), (3448, 8375), (4310, 6700)]