205938180

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 288

約数和(自身を含む): 766846080

約数和(自身を除く): 560907900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 43, 45, 49, 54, 60, 63, 70, 84, 86, 90, 98, 105, 108, 126, 129, 135, 140, 147, 172, 180, 181, 189, 196, 210, 215, 245, 252, 258, 270, 294, 301, 315, 362, 378, 387, 420, 430, 441, 490, 516, 540, 543, 588, 602, 630, 645, 724, 735, 756, 774, 860, 882, 903, 905, 945, 980, 1086, 1161, 1204, 1260, 1267, 1290, 1323, 1470, 1505, 1548, 1629, 1764, 1806, 1810, 1890, 1935, 2107, 2172, 2205, 2322, 2534, 2580, 2646, 2709, 2715, 2940, 3010, 3258, 3612, 3620, 3780, 3801, 3870, 4214, 4410, 4515, 4644, 4887, 5068, 5292, 5418, 5430, 5805, 6020, 6321, 6335, 6516, 6615, 7602, 7740, 7783, 8127, 8145, 8428, 8820, 8869, 9030, 9774, 10535, 10836, 10860, 11403, 11610, 12642, 12670, 13230, 13545, 15204, 15566, 16254, 16290, 17738, 18060, 18963, 19005, 19548, 21070, 22806, 23220, 23349, 24435, 25284, 25340, 26460, 26607, 27090, 31132, 31605, 32508, 32580, 34209, 35476, 37926, 38010, 38915, 40635, 42140, 44345, 45612, 46698, 48870, 53214, 54180, 54481, 56889, 57015, 63210, 68418, 70047, 75852, 76020, 77830, 79821, 81270, 88690, 93396, 94815, 97740, 106428, 108962, 113778, 114030, 116745, 126420, 133035, 136836, 140094, 155660, 159642, 162540, 163443, 171045, 177380, 189630, 210141, 217924, 227556, 228060, 233490, 239463, 266070, 272405, 280188, 284445, 319284, 326886, 342090, 350235, 379260, 381367, 399105, 420282, 466980, 478926, 490329, 532140, 544810, 568890, 653772, 684180, 700470, 762734, 798210, 817215, 840564, 957852, 980658, 1050705, 1089620, 1137780, 1144101, 1197315, 1400940, 1470987, 1525468, 1596420, 1634430, 1906835, 1961316, 2101410, 2288202, 2394630, 2451645, 2941974, 3268860, 3432303, 3813670, 4202820, 4576404, 4789260, 4903290, 5720505, 5883948, 6864606, 7354935, 7627340, 9806580, 10296909, 11441010, 13729212, 14709870, 17161515, 20593818, 22882020, 29419740, 34323030, 41187636, 51484545, 68646060, 102969090, 205938180]

約数ペア:

[(1, 205938180), (2, 102969090), (3, 68646060), (4, 51484545), (5, 41187636), (6, 34323030), (7, 29419740), (9, 22882020), (10, 20593818), (12, 17161515), (14, 14709870), (15, 13729212), (18, 11441010), (20, 10296909), (21, 9806580), (27, 7627340), (28, 7354935), (30, 6864606), (35, 5883948), (36, 5720505), (42, 4903290), (43, 4789260), (45, 4576404), (49, 4202820), (54, 3813670), (60, 3432303), (63, 3268860), (70, 2941974), (84, 2451645), (86, 2394630), (90, 2288202), (98, 2101410), (105, 1961316), (108, 1906835), (126, 1634430), (129, 1596420), (135, 1525468), (140, 1470987), (147, 1400940), (172, 1197315), (180, 1144101), (181, 1137780), (189, 1089620), (196, 1050705), (210, 980658), (215, 957852), (245, 840564), (252, 817215), (258, 798210), (270, 762734), (294, 700470), (301, 684180), (315, 653772), (362, 568890), (378, 544810), (387, 532140), (420, 490329), (430, 478926), (441, 466980), (490, 420282), (516, 399105), (540, 381367), (543, 379260), (588, 350235), (602, 342090), (630, 326886), (645, 319284), (724, 284445), (735, 280188), (756, 272405), (774, 266070), (860, 239463), (882, 233490), (903, 228060), (905, 227556), (945, 217924), (980, 210141), (1086, 189630), (1161, 177380), (1204, 171045), (1260, 163443), (1267, 162540), (1290, 159642), (1323, 155660), (1470, 140094), (1505, 136836), (1548, 133035), (1629, 126420), (1764, 116745), (1806, 114030), (1810, 113778), (1890, 108962), (1935, 106428), (2107, 97740), (2172, 94815), (2205, 93396), (2322, 88690), (2534, 81270), (2580, 79821), (2646, 77830), (2709, 76020), (2715, 75852), (2940, 70047), (3010, 68418), (3258, 63210), (3612, 57015), (3620, 56889), (3780, 54481), (3801, 54180), (3870, 53214), (4214, 48870), (4410, 46698), (4515, 45612), (4644, 44345), (4887, 42140), (5068, 40635), (5292, 38915), (5418, 38010), (5430, 37926), (5805, 35476), (6020, 34209), (6321, 32580), (6335, 32508), (6516, 31605), (6615, 31132), (7602, 27090), (7740, 26607), (7783, 26460), (8127, 25340), (8145, 25284), (8428, 24435), (8820, 23349), (8869, 23220), (9030, 22806), (9774, 21070), (10535, 19548), (10836, 19005), (10860, 18963), (11403, 18060), (11610, 17738), (12642, 16290), (12670, 16254), (13230, 15566), (13545, 15204)]