19615680

素因数分解:

$2^6\times 3^2\times 5^1\times 7^2\times {\mathrm{139}}^1$

素因数の和:176

約数の個数: 252

約数和(自身を含む): 79049880

約数和(自身を除く): 59434200

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, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 139, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 278, 280, 288, 294, 315, 320, 336, 360, 392, 417, 420, 441, 448, 480, 490, 504, 556, 560, 576, 588, 630, 672, 695, 720, 735, 784, 834, 840, 882, 960, 973, 980, 1008, 1112, 1120, 1176, 1251, 1260, 1344, 1390, 1440, 1470, 1568, 1668, 1680, 1764, 1946, 1960, 2016, 2085, 2205, 2224, 2240, 2352, 2502, 2520, 2780, 2880, 2919, 2940, 3136, 3336, 3360, 3528, 3892, 3920, 4032, 4170, 4410, 4448, 4704, 4865, 5004, 5040, 5560, 5838, 5880, 6255, 6672, 6720, 6811, 7056, 7784, 7840, 8340, 8757, 8820, 8896, 9408, 9730, 10008, 10080, 11120, 11676, 11760, 12510, 13344, 13622, 14112, 14595, 15568, 15680, 16680, 17514, 17640, 19460, 20016, 20160, 20433, 22240, 23352, 23520, 25020, 26688, 27244, 28224, 29190, 31136, 33360, 34055, 35028, 35280, 38920, 40032, 40866, 43785, 44480, 46704, 47040, 50040, 54488, 58380, 61299, 62272, 66720, 68110, 70056, 70560, 77840, 80064, 81732, 87570, 93408, 100080, 102165, 108976, 116760, 122598, 133440, 136220, 140112, 141120, 155680, 163464, 175140, 186816, 200160, 204330, 217952, 233520, 245196, 272440, 280224, 306495, 311360, 326928, 350280, 400320, 408660, 435904, 467040, 490392, 544880, 560448, 612990, 653856, 700560, 817320, 934080, 980784, 1089760, 1225980, 1307712, 1401120, 1634640, 1961568, 2179520, 2451960, 2802240, 3269280, 3923136, 4903920, 6538560, 9807840, 19615680]

約数ペア:

[(1, 19615680), (2, 9807840), (3, 6538560), (4, 4903920), (5, 3923136), (6, 3269280), (7, 2802240), (8, 2451960), (9, 2179520), (10, 1961568), (12, 1634640), (14, 1401120), (15, 1307712), (16, 1225980), (18, 1089760), (20, 980784), (21, 934080), (24, 817320), (28, 700560), (30, 653856), (32, 612990), (35, 560448), (36, 544880), (40, 490392), (42, 467040), (45, 435904), (48, 408660), (49, 400320), (56, 350280), (60, 326928), (63, 311360), (64, 306495), (70, 280224), (72, 272440), (80, 245196), (84, 233520), (90, 217952), (96, 204330), (98, 200160), (105, 186816), (112, 175140), (120, 163464), (126, 155680), (139, 141120), (140, 140112), (144, 136220), (147, 133440), (160, 122598), (168, 116760), (180, 108976), (192, 102165), (196, 100080), (210, 93408), (224, 87570), (240, 81732), (245, 80064), (252, 77840), (278, 70560), (280, 70056), (288, 68110), (294, 66720), (315, 62272), (320, 61299), (336, 58380), (360, 54488), (392, 50040), (417, 47040), (420, 46704), (441, 44480), (448, 43785), (480, 40866), (490, 40032), (504, 38920), (556, 35280), (560, 35028), (576, 34055), (588, 33360), (630, 31136), (672, 29190), (695, 28224), (720, 27244), (735, 26688), (784, 25020), (834, 23520), (840, 23352), (882, 22240), (960, 20433), (973, 20160), (980, 20016), (1008, 19460), (1112, 17640), (1120, 17514), (1176, 16680), (1251, 15680), (1260, 15568), (1344, 14595), (1390, 14112), (1440, 13622), (1470, 13344), (1568, 12510), (1668, 11760), (1680, 11676), (1764, 11120), (1946, 10080), (1960, 10008), (2016, 9730), (2085, 9408), (2205, 8896), (2224, 8820), (2240, 8757), (2352, 8340), (2502, 7840), (2520, 7784), (2780, 7056), (2880, 6811), (2919, 6720), (2940, 6672), (3136, 6255), (3336, 5880), (3360, 5838), (3528, 5560), (3892, 5040), (3920, 5004), (4032, 4865), (4170, 4704), (4410, 4448)]