204249640

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{14887}}^1$

素因数の和:14919

約数の個数: 64

約数和(自身を含む): 535968000

約数和(自身を除く): 331718360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 6860, 13720, 14887, 29774, 59548, 74435, 104209, 119096, 148870, 208418, 297740, 416836, 521045, 595480, 729463, 833672, 1042090, 1458926, 2084180, 2917852, 3647315, 4168360, 5106241, 5835704, 7294630, 10212482, 14589260, 20424964, 25531205, 29178520, 40849928, 51062410, 102124820, 204249640]

約数ペア:

[(1, 204249640), (2, 102124820), (4, 51062410), (5, 40849928), (7, 29178520), (8, 25531205), (10, 20424964), (14, 14589260), (20, 10212482), (28, 7294630), (35, 5835704), (40, 5106241), (49, 4168360), (56, 3647315), (70, 2917852), (98, 2084180), (140, 1458926), (196, 1042090), (245, 833672), (280, 729463), (343, 595480), (392, 521045), (490, 416836), (686, 297740), (980, 208418), (1372, 148870), (1715, 119096), (1960, 104209), (2744, 74435), (3430, 59548), (6860, 29774), (13720, 14887)]