2009695900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{648289}}^1$

素因数の和:648334

約数の個数: 36

約数和(自身を含む): 4501725760

約数和(自身を除く): 2492029860

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 648289, 1296578, 2593156, 3241445, 6482890, 12965780, 16207225, 20096959, 32414450, 40193918, 64828900, 80387836, 100484795, 200969590, 401939180, 502423975, 1004847950, 2009695900]

約数ペア:

[(1, 2009695900), (2, 1004847950), (4, 502423975), (5, 401939180), (10, 200969590), (20, 100484795), (25, 80387836), (31, 64828900), (50, 40193918), (62, 32414450), (100, 20096959), (124, 16207225), (155, 12965780), (310, 6482890), (620, 3241445), (775, 2593156), (1550, 1296578), (3100, 648289)]