19996605800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{3225259}}^1$

素因数の和:3225306

約数の個数: 48

約数和(自身を含む): 47991868800

約数和(自身を除く): 27995263000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 3100, 6200, 3225259, 6450518, 12901036, 16126295, 25802072, 32252590, 64505180, 80631475, 99983029, 129010360, 161262950, 199966058, 322525900, 399932116, 499915145, 645051800, 799864232, 999830290, 1999660580, 2499575725, 3999321160, 4999151450, 9998302900, 19996605800]

約数ペア:

[(1, 19996605800), (2, 9998302900), (4, 4999151450), (5, 3999321160), (8, 2499575725), (10, 1999660580), (20, 999830290), (25, 799864232), (31, 645051800), (40, 499915145), (50, 399932116), (62, 322525900), (100, 199966058), (124, 161262950), (155, 129010360), (200, 99983029), (248, 80631475), (310, 64505180), (620, 32252590), (775, 25802072), (1240, 16126295), (1550, 12901036), (3100, 6450518), (6200, 3225259)]