399971520

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1187}}^1$

素因数の和:1229

約数の個数: 280

約数和(自身を含む): 1533503664

約数和(自身を除く): 1133532144

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 180, 192, 195, 208, 216, 234, 240, 260, 270, 288, 312, 320, 324, 351, 360, 390, 405, 416, 432, 468, 480, 520, 540, 576, 585, 624, 648, 702, 720, 780, 810, 832, 864, 936, 960, 1040, 1053, 1080, 1170, 1187, 1248, 1296, 1404, 1440, 1560, 1620, 1728, 1755, 1872, 2080, 2106, 2160, 2340, 2374, 2496, 2592, 2808, 2880, 3120, 3240, 3510, 3561, 3744, 4160, 4212, 4320, 4680, 4748, 5184, 5265, 5616, 5935, 6240, 6480, 7020, 7122, 7488, 8424, 8640, 9360, 9496, 10530, 10683, 11232, 11870, 12480, 12960, 14040, 14244, 15431, 16848, 17805, 18720, 18992, 21060, 21366, 22464, 23740, 25920, 28080, 28488, 30862, 32049, 33696, 35610, 37440, 37984, 42120, 42732, 46293, 47480, 53415, 56160, 56976, 61724, 64098, 67392, 71220, 75968, 77155, 84240, 85464, 92586, 94960, 96147, 106830, 112320, 113952, 123448, 128196, 138879, 142440, 154310, 160245, 168480, 170928, 185172, 189920, 192294, 213660, 227904, 231465, 246896, 256392, 277758, 284880, 308620, 320490, 336960, 341856, 370344, 379840, 384588, 416637, 427320, 462930, 480735, 493792, 512784, 555516, 569760, 617240, 640980, 683712, 694395, 740688, 769176, 833274, 854640, 925860, 961470, 987584, 1025568, 1111032, 1139520, 1234480, 1249911, 1281960, 1388790, 1481376, 1538352, 1666548, 1709280, 1851720, 1922940, 2051136, 2083185, 2222064, 2468960, 2499822, 2563920, 2777580, 2962752, 3076704, 3333096, 3418560, 3703440, 3845880, 4166370, 4444128, 4937920, 4999644, 5127840, 5555160, 6153408, 6249555, 6666192, 7406880, 7691760, 8332740, 8888256, 9999288, 10255680, 11110320, 12499110, 13332384, 14813760, 15383520, 16665480, 19998576, 22220640, 24998220, 26664768, 30767040, 33330960, 39997152, 44441280, 49996440, 66661920, 79994304, 99992880, 133323840, 199985760, 399971520]

約数ペア:

[(1, 399971520), (2, 199985760), (3, 133323840), (4, 99992880), (5, 79994304), (6, 66661920), (8, 49996440), (9, 44441280), (10, 39997152), (12, 33330960), (13, 30767040), (15, 26664768), (16, 24998220), (18, 22220640), (20, 19998576), (24, 16665480), (26, 15383520), (27, 14813760), (30, 13332384), (32, 12499110), (36, 11110320), (39, 10255680), (40, 9999288), (45, 8888256), (48, 8332740), (52, 7691760), (54, 7406880), (60, 6666192), (64, 6249555), (65, 6153408), (72, 5555160), (78, 5127840), (80, 4999644), (81, 4937920), (90, 4444128), (96, 4166370), (104, 3845880), (108, 3703440), (117, 3418560), (120, 3333096), (130, 3076704), (135, 2962752), (144, 2777580), (156, 2563920), (160, 2499822), (162, 2468960), (180, 2222064), (192, 2083185), (195, 2051136), (208, 1922940), (216, 1851720), (234, 1709280), (240, 1666548), (260, 1538352), (270, 1481376), (288, 1388790), (312, 1281960), (320, 1249911), (324, 1234480), (351, 1139520), (360, 1111032), (390, 1025568), (405, 987584), (416, 961470), (432, 925860), (468, 854640), (480, 833274), (520, 769176), (540, 740688), (576, 694395), (585, 683712), (624, 640980), (648, 617240), (702, 569760), (720, 555516), (780, 512784), (810, 493792), (832, 480735), (864, 462930), (936, 427320), (960, 416637), (1040, 384588), (1053, 379840), (1080, 370344), (1170, 341856), (1187, 336960), (1248, 320490), (1296, 308620), (1404, 284880), (1440, 277758), (1560, 256392), (1620, 246896), (1728, 231465), (1755, 227904), (1872, 213660), (2080, 192294), (2106, 189920), (2160, 185172), (2340, 170928), (2374, 168480), (2496, 160245), (2592, 154310), (2808, 142440), (2880, 138879), (3120, 128196), (3240, 123448), (3510, 113952), (3561, 112320), (3744, 106830), (4160, 96147), (4212, 94960), (4320, 92586), (4680, 85464), (4748, 84240), (5184, 77155), (5265, 75968), (5616, 71220), (5935, 67392), (6240, 64098), (6480, 61724), (7020, 56976), (7122, 56160), (7488, 53415), (8424, 47480), (8640, 46293), (9360, 42732), (9496, 42120), (10530, 37984), (10683, 37440), (11232, 35610), (11870, 33696), (12480, 32049), (12960, 30862), (14040, 28488), (14244, 28080), (15431, 25920), (16848, 23740), (17805, 22464), (18720, 21366), (18992, 21060)]