19963440

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1$

素因数の和:276

約数の個数: 240

約数和(自身を含む): 81476928

約数和(自身を除く): 61513488

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 42, 45, 48, 51, 56, 60, 63, 68, 70, 72, 80, 84, 85, 90, 102, 105, 112, 119, 120, 126, 136, 140, 144, 153, 168, 170, 180, 204, 210, 233, 238, 240, 252, 255, 272, 280, 306, 315, 336, 340, 357, 360, 408, 420, 466, 476, 504, 510, 560, 595, 612, 630, 680, 699, 714, 720, 765, 816, 840, 932, 952, 1008, 1020, 1071, 1165, 1190, 1224, 1260, 1360, 1398, 1428, 1530, 1631, 1680, 1785, 1864, 1904, 2040, 2097, 2142, 2330, 2380, 2448, 2520, 2796, 2856, 3060, 3262, 3495, 3570, 3728, 3961, 4080, 4194, 4284, 4660, 4760, 4893, 5040, 5355, 5592, 5712, 6120, 6524, 6990, 7140, 7922, 8155, 8388, 8568, 9320, 9520, 9786, 10485, 10710, 11184, 11883, 12240, 13048, 13980, 14280, 14679, 15844, 16310, 16776, 17136, 18640, 19572, 19805, 20970, 21420, 23766, 24465, 26096, 27727, 27960, 28560, 29358, 31688, 32620, 33552, 35649, 39144, 39610, 41940, 42840, 47532, 48930, 55454, 55920, 58716, 59415, 63376, 65240, 71298, 73395, 78288, 79220, 83181, 83880, 85680, 95064, 97860, 110908, 117432, 118830, 130480, 138635, 142596, 146790, 158440, 166362, 167760, 178245, 190128, 195720, 221816, 234864, 237660, 249543, 277270, 285192, 293580, 316880, 332724, 356490, 391440, 415905, 443632, 475320, 499086, 554540, 570384, 587160, 665448, 712980, 831810, 950640, 998172, 1109080, 1174320, 1247715, 1330896, 1425960, 1663620, 1996344, 2218160, 2495430, 2851920, 3327240, 3992688, 4990860, 6654480, 9981720, 19963440]

約数ペア:

[(1, 19963440), (2, 9981720), (3, 6654480), (4, 4990860), (5, 3992688), (6, 3327240), (7, 2851920), (8, 2495430), (9, 2218160), (10, 1996344), (12, 1663620), (14, 1425960), (15, 1330896), (16, 1247715), (17, 1174320), (18, 1109080), (20, 998172), (21, 950640), (24, 831810), (28, 712980), (30, 665448), (34, 587160), (35, 570384), (36, 554540), (40, 499086), (42, 475320), (45, 443632), (48, 415905), (51, 391440), (56, 356490), (60, 332724), (63, 316880), (68, 293580), (70, 285192), (72, 277270), (80, 249543), (84, 237660), (85, 234864), (90, 221816), (102, 195720), (105, 190128), (112, 178245), (119, 167760), (120, 166362), (126, 158440), (136, 146790), (140, 142596), (144, 138635), (153, 130480), (168, 118830), (170, 117432), (180, 110908), (204, 97860), (210, 95064), (233, 85680), (238, 83880), (240, 83181), (252, 79220), (255, 78288), (272, 73395), (280, 71298), (306, 65240), (315, 63376), (336, 59415), (340, 58716), (357, 55920), (360, 55454), (408, 48930), (420, 47532), (466, 42840), (476, 41940), (504, 39610), (510, 39144), (560, 35649), (595, 33552), (612, 32620), (630, 31688), (680, 29358), (699, 28560), (714, 27960), (720, 27727), (765, 26096), (816, 24465), (840, 23766), (932, 21420), (952, 20970), (1008, 19805), (1020, 19572), (1071, 18640), (1165, 17136), (1190, 16776), (1224, 16310), (1260, 15844), (1360, 14679), (1398, 14280), (1428, 13980), (1530, 13048), (1631, 12240), (1680, 11883), (1785, 11184), (1864, 10710), (1904, 10485), (2040, 9786), (2097, 9520), (2142, 9320), (2330, 8568), (2380, 8388), (2448, 8155), (2520, 7922), (2796, 7140), (2856, 6990), (3060, 6524), (3262, 6120), (3495, 5712), (3570, 5592), (3728, 5355), (3961, 5040), (4080, 4893), (4194, 4760), (4284, 4660)]