20598480

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 240

約数和(自身を含む): 81554304

約数和(自身を除く): 60955824

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 61, 63, 67, 70, 72, 80, 84, 90, 105, 112, 120, 122, 126, 134, 140, 144, 168, 180, 183, 201, 210, 240, 244, 252, 268, 280, 305, 315, 335, 336, 360, 366, 402, 420, 427, 469, 488, 504, 536, 549, 560, 603, 610, 630, 670, 720, 732, 804, 840, 854, 915, 938, 976, 1005, 1008, 1072, 1098, 1206, 1220, 1260, 1281, 1340, 1407, 1464, 1608, 1680, 1708, 1830, 1876, 2010, 2135, 2196, 2345, 2412, 2440, 2520, 2562, 2680, 2745, 2814, 2928, 3015, 3216, 3416, 3660, 3752, 3843, 4020, 4087, 4221, 4270, 4392, 4690, 4824, 4880, 5040, 5124, 5360, 5490, 5628, 6030, 6405, 6832, 7035, 7320, 7504, 7686, 8040, 8174, 8442, 8540, 8784, 9380, 9648, 10248, 10980, 11256, 12060, 12261, 12810, 14070, 14640, 15372, 16080, 16348, 16884, 17080, 18760, 19215, 20435, 20496, 21105, 21960, 22512, 24120, 24522, 25620, 28140, 28609, 30744, 32696, 33768, 34160, 36783, 37520, 38430, 40870, 42210, 43920, 48240, 49044, 51240, 56280, 57218, 61305, 61488, 65392, 67536, 73566, 76860, 81740, 84420, 85827, 98088, 102480, 112560, 114436, 122610, 143045, 147132, 153720, 163480, 168840, 171654, 183915, 196176, 228872, 245220, 257481, 286090, 294264, 307440, 326960, 337680, 343308, 367830, 429135, 457744, 490440, 514962, 572180, 588528, 686616, 735660, 858270, 980880, 1029924, 1144360, 1287405, 1373232, 1471320, 1716540, 2059848, 2288720, 2574810, 2942640, 3433080, 4119696, 5149620, 6866160, 10299240, 20598480]

約数ペア:

[(1, 20598480), (2, 10299240), (3, 6866160), (4, 5149620), (5, 4119696), (6, 3433080), (7, 2942640), (8, 2574810), (9, 2288720), (10, 2059848), (12, 1716540), (14, 1471320), (15, 1373232), (16, 1287405), (18, 1144360), (20, 1029924), (21, 980880), (24, 858270), (28, 735660), (30, 686616), (35, 588528), (36, 572180), (40, 514962), (42, 490440), (45, 457744), (48, 429135), (56, 367830), (60, 343308), (61, 337680), (63, 326960), (67, 307440), (70, 294264), (72, 286090), (80, 257481), (84, 245220), (90, 228872), (105, 196176), (112, 183915), (120, 171654), (122, 168840), (126, 163480), (134, 153720), (140, 147132), (144, 143045), (168, 122610), (180, 114436), (183, 112560), (201, 102480), (210, 98088), (240, 85827), (244, 84420), (252, 81740), (268, 76860), (280, 73566), (305, 67536), (315, 65392), (335, 61488), (336, 61305), (360, 57218), (366, 56280), (402, 51240), (420, 49044), (427, 48240), (469, 43920), (488, 42210), (504, 40870), (536, 38430), (549, 37520), (560, 36783), (603, 34160), (610, 33768), (630, 32696), (670, 30744), (720, 28609), (732, 28140), (804, 25620), (840, 24522), (854, 24120), (915, 22512), (938, 21960), (976, 21105), (1005, 20496), (1008, 20435), (1072, 19215), (1098, 18760), (1206, 17080), (1220, 16884), (1260, 16348), (1281, 16080), (1340, 15372), (1407, 14640), (1464, 14070), (1608, 12810), (1680, 12261), (1708, 12060), (1830, 11256), (1876, 10980), (2010, 10248), (2135, 9648), (2196, 9380), (2345, 8784), (2412, 8540), (2440, 8442), (2520, 8174), (2562, 8040), (2680, 7686), (2745, 7504), (2814, 7320), (2928, 7035), (3015, 6832), (3216, 6405), (3416, 6030), (3660, 5628), (3752, 5490), (3843, 5360), (4020, 5124), (4087, 5040), (4221, 4880), (4270, 4824), (4392, 4690)]