20329000

素因数分解:

$2^3\times 5^3\times {\mathrm{29}}^1\times {\mathrm{701}}^1$

素因数の和:751

約数の個数: 64

約数和(自身を含む): 49280400

約数和(自身を除く): 28951400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 125, 145, 200, 232, 250, 290, 500, 580, 701, 725, 1000, 1160, 1402, 1450, 2804, 2900, 3505, 3625, 5608, 5800, 7010, 7250, 14020, 14500, 17525, 20329, 28040, 29000, 35050, 40658, 70100, 81316, 87625, 101645, 140200, 162632, 175250, 203290, 350500, 406580, 508225, 701000, 813160, 1016450, 2032900, 2541125, 4065800, 5082250, 10164500, 20329000]

約数ペア:

[(1, 20329000), (2, 10164500), (4, 5082250), (5, 4065800), (8, 2541125), (10, 2032900), (20, 1016450), (25, 813160), (29, 701000), (40, 508225), (50, 406580), (58, 350500), (100, 203290), (116, 175250), (125, 162632), (145, 140200), (200, 101645), (232, 87625), (250, 81316), (290, 70100), (500, 40658), (580, 35050), (701, 29000), (725, 28040), (1000, 20329), (1160, 17525), (1402, 14500), (1450, 14020), (2804, 7250), (2900, 7010), (3505, 5800), (3625, 5608)]