261707040

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{3709}}^1$

素因数の和:3744

約数の個数: 216

約数和(自身を含む): 1039163580

約数和(自身を除く): 777456540

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 360, 392, 420, 441, 480, 490, 504, 560, 588, 630, 672, 720, 735, 784, 840, 882, 980, 1008, 1120, 1176, 1260, 1440, 1470, 1568, 1680, 1764, 1960, 2016, 2205, 2352, 2520, 2940, 3360, 3528, 3709, 3920, 4410, 4704, 5040, 5880, 7056, 7418, 7840, 8820, 10080, 11127, 11760, 14112, 14836, 17640, 18545, 22254, 23520, 25963, 29672, 33381, 35280, 37090, 44508, 51926, 55635, 59344, 66762, 70560, 74180, 77889, 89016, 103852, 111270, 118688, 129815, 133524, 148360, 155778, 166905, 178032, 181741, 207704, 222540, 233667, 259630, 267048, 296720, 311556, 333810, 356064, 363482, 389445, 415408, 445080, 467334, 519260, 534096, 545223, 593440, 623112, 667620, 726964, 778890, 830816, 890160, 908705, 934668, 1038520, 1068192, 1090446, 1168335, 1246224, 1335240, 1453928, 1557780, 1635669, 1780320, 1817410, 1869336, 2077040, 2180892, 2336670, 2492448, 2670480, 2726115, 2907856, 3115560, 3271338, 3634820, 3738672, 4154080, 4361784, 4673340, 5340960, 5452230, 5815712, 6231120, 6542676, 7269640, 7477344, 8178345, 8723568, 9346680, 10904460, 12462240, 13085352, 14539280, 16356690, 17447136, 18693360, 21808920, 26170704, 29078560, 32713380, 37386720, 43617840, 52341408, 65426760, 87235680, 130853520, 261707040]

約数ペア:

[(1, 261707040), (2, 130853520), (3, 87235680), (4, 65426760), (5, 52341408), (6, 43617840), (7, 37386720), (8, 32713380), (9, 29078560), (10, 26170704), (12, 21808920), (14, 18693360), (15, 17447136), (16, 16356690), (18, 14539280), (20, 13085352), (21, 12462240), (24, 10904460), (28, 9346680), (30, 8723568), (32, 8178345), (35, 7477344), (36, 7269640), (40, 6542676), (42, 6231120), (45, 5815712), (48, 5452230), (49, 5340960), (56, 4673340), (60, 4361784), (63, 4154080), (70, 3738672), (72, 3634820), (80, 3271338), (84, 3115560), (90, 2907856), (96, 2726115), (98, 2670480), (105, 2492448), (112, 2336670), (120, 2180892), (126, 2077040), (140, 1869336), (144, 1817410), (147, 1780320), (160, 1635669), (168, 1557780), (180, 1453928), (196, 1335240), (210, 1246224), (224, 1168335), (240, 1090446), (245, 1068192), (252, 1038520), (280, 934668), (288, 908705), (294, 890160), (315, 830816), (336, 778890), (360, 726964), (392, 667620), (420, 623112), (441, 593440), (480, 545223), (490, 534096), (504, 519260), (560, 467334), (588, 445080), (630, 415408), (672, 389445), (720, 363482), (735, 356064), (784, 333810), (840, 311556), (882, 296720), (980, 267048), (1008, 259630), (1120, 233667), (1176, 222540), (1260, 207704), (1440, 181741), (1470, 178032), (1568, 166905), (1680, 155778), (1764, 148360), (1960, 133524), (2016, 129815), (2205, 118688), (2352, 111270), (2520, 103852), (2940, 89016), (3360, 77889), (3528, 74180), (3709, 70560), (3920, 66762), (4410, 59344), (4704, 55635), (5040, 51926), (5880, 44508), (7056, 37090), (7418, 35280), (7840, 33381), (8820, 29672), (10080, 25963), (11127, 23520), (11760, 22254), (14112, 18545), (14836, 17640)]