105005000

素因数分解:

$2^3\times 5^4\times {\mathrm{21001}}^1$

素因数の和:21027

約数の個数: 40

約数和(自身を含む): 246038430

約数和(自身を除く): 141033430

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 21001, 42002, 84004, 105005, 168008, 210010, 420020, 525025, 840040, 1050050, 2100100, 2625125, 4200200, 5250250, 10500500, 13125625, 21001000, 26251250, 52502500, 105005000]

約数ペア:

[(1, 105005000), (2, 52502500), (4, 26251250), (5, 21001000), (8, 13125625), (10, 10500500), (20, 5250250), (25, 4200200), (40, 2625125), (50, 2100100), (100, 1050050), (125, 840040), (200, 525025), (250, 420020), (500, 210010), (625, 168008), (1000, 105005), (1250, 84004), (2500, 42002), (5000, 21001)]