820225440

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3331}}^1$

素因数の和:3377

約数の個数: 240

約数和(自身を含む): 3047980320

約数和(自身を除く): 2227754880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 96, 108, 114, 120, 135, 144, 152, 160, 162, 171, 180, 190, 216, 228, 240, 270, 285, 288, 304, 324, 342, 360, 380, 405, 432, 456, 480, 513, 540, 570, 608, 648, 684, 720, 760, 810, 855, 864, 912, 1026, 1080, 1140, 1296, 1368, 1440, 1520, 1539, 1620, 1710, 1824, 2052, 2160, 2280, 2565, 2592, 2736, 3040, 3078, 3240, 3331, 3420, 4104, 4320, 4560, 5130, 5472, 6156, 6480, 6662, 6840, 7695, 8208, 9120, 9993, 10260, 12312, 12960, 13324, 13680, 15390, 16416, 16655, 19986, 20520, 24624, 26648, 27360, 29979, 30780, 33310, 39972, 41040, 49248, 49965, 53296, 59958, 61560, 63289, 66620, 79944, 82080, 89937, 99930, 106592, 119916, 123120, 126578, 133240, 149895, 159888, 179874, 189867, 199860, 239832, 246240, 253156, 266480, 269811, 299790, 316445, 319776, 359748, 379734, 399720, 449685, 479664, 506312, 532960, 539622, 569601, 599580, 632890, 719496, 759468, 799440, 899370, 949335, 959328, 1012624, 1079244, 1139202, 1199160, 1265780, 1349055, 1438992, 1518936, 1598880, 1708803, 1798740, 1898670, 2025248, 2158488, 2278404, 2398320, 2531560, 2698110, 2848005, 2877984, 3037872, 3417606, 3597480, 3797340, 4316976, 4556808, 4796640, 5063120, 5126409, 5396220, 5696010, 6075744, 6835212, 7194960, 7594680, 8544015, 8633952, 9113616, 10126240, 10252818, 10792440, 11392020, 13670424, 14389920, 15189360, 17088030, 18227232, 20505636, 21584880, 22784040, 25632045, 27340848, 30378720, 34176060, 41011272, 43169760, 45568080, 51264090, 54681696, 68352120, 82022544, 91136160, 102528180, 136704240, 164045088, 205056360, 273408480, 410112720, 820225440]

約数ペア:

[(1, 820225440), (2, 410112720), (3, 273408480), (4, 205056360), (5, 164045088), (6, 136704240), (8, 102528180), (9, 91136160), (10, 82022544), (12, 68352120), (15, 54681696), (16, 51264090), (18, 45568080), (19, 43169760), (20, 41011272), (24, 34176060), (27, 30378720), (30, 27340848), (32, 25632045), (36, 22784040), (38, 21584880), (40, 20505636), (45, 18227232), (48, 17088030), (54, 15189360), (57, 14389920), (60, 13670424), (72, 11392020), (76, 10792440), (80, 10252818), (81, 10126240), (90, 9113616), (95, 8633952), (96, 8544015), (108, 7594680), (114, 7194960), (120, 6835212), (135, 6075744), (144, 5696010), (152, 5396220), (160, 5126409), (162, 5063120), (171, 4796640), (180, 4556808), (190, 4316976), (216, 3797340), (228, 3597480), (240, 3417606), (270, 3037872), (285, 2877984), (288, 2848005), (304, 2698110), (324, 2531560), (342, 2398320), (360, 2278404), (380, 2158488), (405, 2025248), (432, 1898670), (456, 1798740), (480, 1708803), (513, 1598880), (540, 1518936), (570, 1438992), (608, 1349055), (648, 1265780), (684, 1199160), (720, 1139202), (760, 1079244), (810, 1012624), (855, 959328), (864, 949335), (912, 899370), (1026, 799440), (1080, 759468), (1140, 719496), (1296, 632890), (1368, 599580), (1440, 569601), (1520, 539622), (1539, 532960), (1620, 506312), (1710, 479664), (1824, 449685), (2052, 399720), (2160, 379734), (2280, 359748), (2565, 319776), (2592, 316445), (2736, 299790), (3040, 269811), (3078, 266480), (3240, 253156), (3331, 246240), (3420, 239832), (4104, 199860), (4320, 189867), (4560, 179874), (5130, 159888), (5472, 149895), (6156, 133240), (6480, 126578), (6662, 123120), (6840, 119916), (7695, 106592), (8208, 99930), (9120, 89937), (9993, 82080), (10260, 79944), (12312, 66620), (12960, 63289), (13324, 61560), (13680, 59958), (15390, 53296), (16416, 49965), (16655, 49248), (19986, 41040), (20520, 39972), (24624, 33310), (26648, 30780), (27360, 29979)]