388330880

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:130

約数の個数: 256

約数和(自身を含む): 1138320000

約数和(自身を除く): 749989120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 61, 64, 70, 80, 98, 112, 116, 122, 128, 140, 145, 160, 196, 203, 224, 232, 244, 245, 280, 290, 305, 320, 343, 392, 406, 427, 448, 464, 488, 490, 560, 580, 610, 640, 686, 784, 812, 854, 896, 928, 976, 980, 1015, 1120, 1160, 1220, 1372, 1421, 1568, 1624, 1708, 1715, 1769, 1856, 1952, 1960, 2030, 2135, 2240, 2320, 2440, 2744, 2842, 2989, 3136, 3248, 3416, 3430, 3538, 3712, 3904, 3920, 4060, 4270, 4480, 4640, 4880, 5488, 5684, 5978, 6272, 6496, 6832, 6860, 7076, 7105, 7808, 7840, 8120, 8540, 8845, 9280, 9760, 9947, 10976, 11368, 11956, 12383, 12992, 13664, 13720, 14152, 14210, 14945, 15680, 16240, 17080, 17690, 18560, 19520, 19894, 20923, 21952, 22736, 23912, 24766, 25984, 27328, 27440, 28304, 28420, 29890, 31360, 32480, 34160, 35380, 39040, 39788, 41846, 43904, 45472, 47824, 49532, 49735, 54656, 54880, 56608, 56840, 59780, 61915, 64960, 68320, 70760, 79576, 83692, 86681, 90944, 95648, 99064, 99470, 104615, 109760, 113216, 113680, 119560, 123830, 129920, 136640, 141520, 159152, 167384, 173362, 181888, 191296, 198128, 198940, 209230, 219520, 226432, 227360, 239120, 247660, 273280, 283040, 318304, 334768, 346724, 382592, 396256, 397880, 418460, 433405, 454720, 478240, 495320, 566080, 606767, 636608, 669536, 693448, 792512, 795760, 836920, 866810, 909440, 956480, 990640, 1132160, 1213534, 1273216, 1339072, 1386896, 1585024, 1591520, 1673840, 1733620, 1912960, 1981280, 2427068, 2678144, 2773792, 3033835, 3183040, 3347680, 3467240, 3962560, 4854136, 5547584, 6067670, 6366080, 6695360, 6934480, 7925120, 9708272, 11095168, 12135340, 13390720, 13868960, 19416544, 24270680, 27737920, 38833088, 48541360, 55475840, 77666176, 97082720, 194165440, 388330880]

約数ペア:

[(1, 388330880), (2, 194165440), (4, 97082720), (5, 77666176), (7, 55475840), (8, 48541360), (10, 38833088), (14, 27737920), (16, 24270680), (20, 19416544), (28, 13868960), (29, 13390720), (32, 12135340), (35, 11095168), (40, 9708272), (49, 7925120), (56, 6934480), (58, 6695360), (61, 6366080), (64, 6067670), (70, 5547584), (80, 4854136), (98, 3962560), (112, 3467240), (116, 3347680), (122, 3183040), (128, 3033835), (140, 2773792), (145, 2678144), (160, 2427068), (196, 1981280), (203, 1912960), (224, 1733620), (232, 1673840), (244, 1591520), (245, 1585024), (280, 1386896), (290, 1339072), (305, 1273216), (320, 1213534), (343, 1132160), (392, 990640), (406, 956480), (427, 909440), (448, 866810), (464, 836920), (488, 795760), (490, 792512), (560, 693448), (580, 669536), (610, 636608), (640, 606767), (686, 566080), (784, 495320), (812, 478240), (854, 454720), (896, 433405), (928, 418460), (976, 397880), (980, 396256), (1015, 382592), (1120, 346724), (1160, 334768), (1220, 318304), (1372, 283040), (1421, 273280), (1568, 247660), (1624, 239120), (1708, 227360), (1715, 226432), (1769, 219520), (1856, 209230), (1952, 198940), (1960, 198128), (2030, 191296), (2135, 181888), (2240, 173362), (2320, 167384), (2440, 159152), (2744, 141520), (2842, 136640), (2989, 129920), (3136, 123830), (3248, 119560), (3416, 113680), (3430, 113216), (3538, 109760), (3712, 104615), (3904, 99470), (3920, 99064), (4060, 95648), (4270, 90944), (4480, 86681), (4640, 83692), (4880, 79576), (5488, 70760), (5684, 68320), (5978, 64960), (6272, 61915), (6496, 59780), (6832, 56840), (6860, 56608), (7076, 54880), (7105, 54656), (7808, 49735), (7840, 49532), (8120, 47824), (8540, 45472), (8845, 43904), (9280, 41846), (9760, 39788), (9947, 39040), (10976, 35380), (11368, 34160), (11956, 32480), (12383, 31360), (12992, 29890), (13664, 28420), (13720, 28304), (14152, 27440), (14210, 27328), (14945, 25984), (15680, 24766), (16240, 23912), (17080, 22736), (17690, 21952), (18560, 20923), (19520, 19894)]