204282120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1549}}^1$

素因数の和:1727

約数の個数: 128

約数和(自身を含む): 705312000

約数和(自身を除く): 501029880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 280, 314, 420, 471, 628, 785, 840, 942, 1099, 1256, 1549, 1570, 1884, 2198, 2355, 3098, 3140, 3297, 3768, 4396, 4647, 4710, 5495, 6196, 6280, 6594, 7745, 8792, 9294, 9420, 10843, 10990, 12392, 13188, 15490, 16485, 18588, 18840, 21686, 21980, 23235, 26376, 30980, 32529, 32970, 37176, 43372, 43960, 46470, 54215, 61960, 65058, 65940, 86744, 92940, 108430, 130116, 131880, 162645, 185880, 216860, 243193, 260232, 325290, 433720, 486386, 650580, 729579, 972772, 1215965, 1301160, 1459158, 1702351, 1945544, 2431930, 2918316, 3404702, 3647895, 4863860, 5107053, 5836632, 6809404, 7295790, 8511755, 9727720, 10214106, 13618808, 14591580, 17023510, 20428212, 25535265, 29183160, 34047020, 40856424, 51070530, 68094040, 102141060, 204282120]

約数ペア:

[(1, 204282120), (2, 102141060), (3, 68094040), (4, 51070530), (5, 40856424), (6, 34047020), (7, 29183160), (8, 25535265), (10, 20428212), (12, 17023510), (14, 14591580), (15, 13618808), (20, 10214106), (21, 9727720), (24, 8511755), (28, 7295790), (30, 6809404), (35, 5836632), (40, 5107053), (42, 4863860), (56, 3647895), (60, 3404702), (70, 2918316), (84, 2431930), (105, 1945544), (120, 1702351), (140, 1459158), (157, 1301160), (168, 1215965), (210, 972772), (280, 729579), (314, 650580), (420, 486386), (471, 433720), (628, 325290), (785, 260232), (840, 243193), (942, 216860), (1099, 185880), (1256, 162645), (1549, 131880), (1570, 130116), (1884, 108430), (2198, 92940), (2355, 86744), (3098, 65940), (3140, 65058), (3297, 61960), (3768, 54215), (4396, 46470), (4647, 43960), (4710, 43372), (5495, 37176), (6196, 32970), (6280, 32529), (6594, 30980), (7745, 26376), (8792, 23235), (9294, 21980), (9420, 21686), (10843, 18840), (10990, 18588), (12392, 16485), (13188, 15490)]