19188540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 67634112

約数和(自身を除く): 48445572

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 97, 105, 126, 140, 157, 180, 194, 210, 252, 291, 314, 315, 388, 420, 471, 485, 582, 628, 630, 679, 785, 873, 942, 970, 1099, 1164, 1260, 1358, 1413, 1455, 1570, 1746, 1884, 1940, 2037, 2198, 2355, 2716, 2826, 2910, 3140, 3297, 3395, 3492, 4074, 4365, 4396, 4710, 5495, 5652, 5820, 6111, 6594, 6790, 7065, 8148, 8730, 9420, 9891, 10185, 10990, 12222, 13188, 13580, 14130, 15229, 16485, 17460, 19782, 20370, 21980, 24444, 28260, 30458, 30555, 32970, 39564, 40740, 45687, 49455, 60916, 61110, 65940, 76145, 91374, 98910, 106603, 122220, 137061, 152290, 182748, 197820, 213206, 228435, 274122, 304580, 319809, 426412, 456870, 533015, 548244, 639618, 685305, 913740, 959427, 1066030, 1279236, 1370610, 1599045, 1918854, 2132060, 2741220, 3198090, 3837708, 4797135, 6396180, 9594270, 19188540]

約数ペア:

[(1, 19188540), (2, 9594270), (3, 6396180), (4, 4797135), (5, 3837708), (6, 3198090), (7, 2741220), (9, 2132060), (10, 1918854), (12, 1599045), (14, 1370610), (15, 1279236), (18, 1066030), (20, 959427), (21, 913740), (28, 685305), (30, 639618), (35, 548244), (36, 533015), (42, 456870), (45, 426412), (60, 319809), (63, 304580), (70, 274122), (84, 228435), (90, 213206), (97, 197820), (105, 182748), (126, 152290), (140, 137061), (157, 122220), (180, 106603), (194, 98910), (210, 91374), (252, 76145), (291, 65940), (314, 61110), (315, 60916), (388, 49455), (420, 45687), (471, 40740), (485, 39564), (582, 32970), (628, 30555), (630, 30458), (679, 28260), (785, 24444), (873, 21980), (942, 20370), (970, 19782), (1099, 17460), (1164, 16485), (1260, 15229), (1358, 14130), (1413, 13580), (1455, 13188), (1570, 12222), (1746, 10990), (1884, 10185), (1940, 9891), (2037, 9420), (2198, 8730), (2355, 8148), (2716, 7065), (2826, 6790), (2910, 6594), (3140, 6111), (3297, 5820), (3395, 5652), (3492, 5495), (4074, 4710), (4365, 4396)]