15781920

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1$

素因数の和:104

約数の個数: 288

約数和(自身を含む): 64120896

約数和(自身を除く): 48338976

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 49, 55, 56, 60, 61, 66, 70, 77, 80, 84, 88, 96, 98, 105, 110, 112, 120, 122, 132, 140, 147, 154, 160, 165, 168, 176, 183, 196, 210, 220, 224, 231, 240, 244, 245, 264, 280, 294, 305, 308, 330, 336, 352, 366, 385, 392, 420, 427, 440, 462, 480, 488, 490, 528, 539, 560, 588, 610, 616, 660, 671, 672, 732, 735, 770, 784, 840, 854, 880, 915, 924, 976, 980, 1056, 1078, 1120, 1155, 1176, 1220, 1232, 1281, 1320, 1342, 1464, 1470, 1540, 1568, 1617, 1680, 1708, 1760, 1830, 1848, 1952, 1960, 2013, 2135, 2156, 2310, 2352, 2440, 2464, 2562, 2640, 2684, 2695, 2928, 2940, 2989, 3080, 3234, 3355, 3360, 3416, 3660, 3696, 3920, 4026, 4270, 4312, 4620, 4697, 4704, 4880, 5124, 5280, 5368, 5390, 5856, 5880, 5978, 6160, 6405, 6468, 6710, 6832, 7320, 7392, 7840, 8052, 8085, 8540, 8624, 8967, 9240, 9394, 9760, 10065, 10248, 10736, 10780, 11760, 11956, 12320, 12810, 12936, 13420, 13664, 14091, 14640, 14945, 16104, 16170, 17080, 17248, 17934, 18480, 18788, 20130, 20496, 21472, 21560, 23485, 23520, 23912, 25620, 25872, 26840, 28182, 29280, 29890, 32208, 32340, 32879, 34160, 35868, 36960, 37576, 40260, 40992, 43120, 44835, 46970, 47824, 51240, 51744, 53680, 56364, 59780, 64416, 64680, 65758, 68320, 70455, 71736, 75152, 80520, 86240, 89670, 93940, 95648, 98637, 102480, 107360, 112728, 119560, 129360, 131516, 140910, 143472, 150304, 161040, 164395, 179340, 187880, 197274, 204960, 225456, 239120, 258720, 263032, 281820, 286944, 322080, 328790, 358680, 375760, 394548, 450912, 478240, 493185, 526064, 563640, 657580, 717360, 751520, 789096, 986370, 1052128, 1127280, 1315160, 1434720, 1578192, 1972740, 2254560, 2630320, 3156384, 3945480, 5260640, 7890960, 15781920]

約数ペア:

[(1, 15781920), (2, 7890960), (3, 5260640), (4, 3945480), (5, 3156384), (6, 2630320), (7, 2254560), (8, 1972740), (10, 1578192), (11, 1434720), (12, 1315160), (14, 1127280), (15, 1052128), (16, 986370), (20, 789096), (21, 751520), (22, 717360), (24, 657580), (28, 563640), (30, 526064), (32, 493185), (33, 478240), (35, 450912), (40, 394548), (42, 375760), (44, 358680), (48, 328790), (49, 322080), (55, 286944), (56, 281820), (60, 263032), (61, 258720), (66, 239120), (70, 225456), (77, 204960), (80, 197274), (84, 187880), (88, 179340), (96, 164395), (98, 161040), (105, 150304), (110, 143472), (112, 140910), (120, 131516), (122, 129360), (132, 119560), (140, 112728), (147, 107360), (154, 102480), (160, 98637), (165, 95648), (168, 93940), (176, 89670), (183, 86240), (196, 80520), (210, 75152), (220, 71736), (224, 70455), (231, 68320), (240, 65758), (244, 64680), (245, 64416), (264, 59780), (280, 56364), (294, 53680), (305, 51744), (308, 51240), (330, 47824), (336, 46970), (352, 44835), (366, 43120), (385, 40992), (392, 40260), (420, 37576), (427, 36960), (440, 35868), (462, 34160), (480, 32879), (488, 32340), (490, 32208), (528, 29890), (539, 29280), (560, 28182), (588, 26840), (610, 25872), (616, 25620), (660, 23912), (671, 23520), (672, 23485), (732, 21560), (735, 21472), (770, 20496), (784, 20130), (840, 18788), (854, 18480), (880, 17934), (915, 17248), (924, 17080), (976, 16170), (980, 16104), (1056, 14945), (1078, 14640), (1120, 14091), (1155, 13664), (1176, 13420), (1220, 12936), (1232, 12810), (1281, 12320), (1320, 11956), (1342, 11760), (1464, 10780), (1470, 10736), (1540, 10248), (1568, 10065), (1617, 9760), (1680, 9394), (1708, 9240), (1760, 8967), (1830, 8624), (1848, 8540), (1952, 8085), (1960, 8052), (2013, 7840), (2135, 7392), (2156, 7320), (2310, 6832), (2352, 6710), (2440, 6468), (2464, 6405), (2562, 6160), (2640, 5978), (2684, 5880), (2695, 5856), (2928, 5390), (2940, 5368), (2989, 5280), (3080, 5124), (3234, 4880), (3355, 4704), (3360, 4697), (3416, 4620), (3660, 4312), (3696, 4270), (3920, 4026)]