20762280

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1$

素因数の和:149

約数の個数: 288

約数和(自身を含む): 86430240

約数和(自身を除く): 65667960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 49, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 98, 99, 105, 107, 110, 120, 126, 132, 140, 147, 154, 165, 168, 180, 196, 198, 210, 214, 220, 231, 245, 252, 264, 280, 294, 308, 315, 321, 330, 360, 385, 392, 396, 420, 428, 440, 441, 462, 490, 495, 504, 535, 539, 588, 616, 630, 642, 660, 693, 735, 749, 770, 792, 840, 856, 882, 924, 963, 980, 990, 1070, 1078, 1155, 1176, 1177, 1260, 1284, 1320, 1386, 1470, 1498, 1540, 1605, 1617, 1764, 1848, 1926, 1960, 1980, 2140, 2156, 2205, 2247, 2310, 2354, 2520, 2568, 2695, 2772, 2940, 2996, 3080, 3210, 3234, 3465, 3528, 3531, 3745, 3852, 3960, 4280, 4312, 4410, 4494, 4620, 4708, 4815, 4851, 5243, 5390, 5544, 5880, 5885, 5992, 6420, 6468, 6741, 6930, 7062, 7490, 7704, 8085, 8239, 8820, 8988, 9240, 9416, 9630, 9702, 10486, 10593, 10780, 11235, 11770, 12840, 12936, 13482, 13860, 14124, 14980, 15729, 16170, 16478, 17640, 17655, 17976, 19260, 19404, 20972, 21186, 21560, 22470, 23540, 24255, 24717, 26215, 26964, 27720, 28248, 29960, 31458, 32340, 32956, 33705, 35310, 38520, 38808, 41195, 41944, 42372, 44940, 47080, 47187, 48510, 49434, 52430, 52965, 53928, 57673, 62916, 64680, 65912, 67410, 70620, 74151, 78645, 82390, 84744, 89880, 94374, 97020, 98868, 104860, 105930, 115346, 123585, 125832, 134820, 141240, 148302, 157290, 164780, 173019, 188748, 194040, 197736, 209720, 211860, 230692, 235935, 247170, 269640, 288365, 296604, 314580, 329560, 346038, 370755, 377496, 423720, 461384, 471870, 494340, 519057, 576730, 593208, 629160, 692076, 741510, 865095, 943740, 988680, 1038114, 1153460, 1384152, 1483020, 1730190, 1887480, 2076228, 2306920, 2595285, 2966040, 3460380, 4152456, 5190570, 6920760, 10381140, 20762280]

約数ペア:

[(1, 20762280), (2, 10381140), (3, 6920760), (4, 5190570), (5, 4152456), (6, 3460380), (7, 2966040), (8, 2595285), (9, 2306920), (10, 2076228), (11, 1887480), (12, 1730190), (14, 1483020), (15, 1384152), (18, 1153460), (20, 1038114), (21, 988680), (22, 943740), (24, 865095), (28, 741510), (30, 692076), (33, 629160), (35, 593208), (36, 576730), (40, 519057), (42, 494340), (44, 471870), (45, 461384), (49, 423720), (55, 377496), (56, 370755), (60, 346038), (63, 329560), (66, 314580), (70, 296604), (72, 288365), (77, 269640), (84, 247170), (88, 235935), (90, 230692), (98, 211860), (99, 209720), (105, 197736), (107, 194040), (110, 188748), (120, 173019), (126, 164780), (132, 157290), (140, 148302), (147, 141240), (154, 134820), (165, 125832), (168, 123585), (180, 115346), (196, 105930), (198, 104860), (210, 98868), (214, 97020), (220, 94374), (231, 89880), (245, 84744), (252, 82390), (264, 78645), (280, 74151), (294, 70620), (308, 67410), (315, 65912), (321, 64680), (330, 62916), (360, 57673), (385, 53928), (392, 52965), (396, 52430), (420, 49434), (428, 48510), (440, 47187), (441, 47080), (462, 44940), (490, 42372), (495, 41944), (504, 41195), (535, 38808), (539, 38520), (588, 35310), (616, 33705), (630, 32956), (642, 32340), (660, 31458), (693, 29960), (735, 28248), (749, 27720), (770, 26964), (792, 26215), (840, 24717), (856, 24255), (882, 23540), (924, 22470), (963, 21560), (980, 21186), (990, 20972), (1070, 19404), (1078, 19260), (1155, 17976), (1176, 17655), (1177, 17640), (1260, 16478), (1284, 16170), (1320, 15729), (1386, 14980), (1470, 14124), (1498, 13860), (1540, 13482), (1605, 12936), (1617, 12840), (1764, 11770), (1848, 11235), (1926, 10780), (1960, 10593), (1980, 10486), (2140, 9702), (2156, 9630), (2205, 9416), (2247, 9240), (2310, 8988), (2354, 8820), (2520, 8239), (2568, 8085), (2695, 7704), (2772, 7490), (2940, 7062), (2996, 6930), (3080, 6741), (3210, 6468), (3234, 6420), (3465, 5992), (3528, 5885), (3531, 5880), (3745, 5544), (3852, 5390), (3960, 5243), (4280, 4851), (4312, 4815), (4410, 4708), (4494, 4620)]