1820131520

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:359

約数の個数: 224

約数和(自身を含む): 4866656256

約数和(自身を除く): 3046524736

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 43, 62, 64, 68, 80, 85, 86, 124, 136, 155, 160, 170, 172, 215, 248, 251, 272, 310, 320, 340, 344, 430, 496, 502, 527, 544, 620, 680, 688, 731, 860, 992, 1004, 1054, 1088, 1240, 1255, 1333, 1360, 1376, 1462, 1720, 1984, 2008, 2108, 2480, 2510, 2635, 2666, 2720, 2752, 2924, 3440, 3655, 4016, 4216, 4267, 4960, 5020, 5270, 5332, 5440, 5848, 6665, 6880, 7310, 7781, 8032, 8432, 8534, 9920, 10040, 10540, 10664, 10793, 11696, 13330, 13760, 14620, 15562, 16064, 16864, 17068, 20080, 21080, 21328, 21335, 21586, 22661, 23392, 26660, 29240, 31124, 33728, 34136, 38905, 40160, 42160, 42656, 42670, 43172, 45322, 46784, 53320, 53965, 58480, 62248, 68272, 77810, 80320, 84320, 85312, 85340, 86344, 90644, 106640, 107930, 113305, 116960, 124496, 132277, 136544, 155620, 168640, 170680, 172688, 181288, 183481, 213280, 215860, 226610, 233920, 248992, 264554, 273088, 311240, 334583, 341360, 345376, 362576, 366962, 426560, 431720, 453220, 497984, 529108, 622480, 661385, 669166, 682720, 690752, 725152, 733924, 863440, 906440, 917405, 1058216, 1244960, 1322770, 1338332, 1365440, 1450304, 1467848, 1672915, 1726880, 1812880, 1834810, 2116432, 2489920, 2645540, 2676664, 2935696, 3345830, 3453760, 3625760, 3669620, 4232864, 5291080, 5353328, 5687911, 5871392, 6691660, 7251520, 7339240, 8465728, 10582160, 10706656, 11375822, 11742784, 13383320, 14678480, 21164320, 21413312, 22751644, 26766640, 28439555, 29356960, 42328640, 45503288, 53533280, 56879110, 58713920, 91006576, 107066560, 113758220, 182013152, 227516440, 364026304, 455032880, 910065760, 1820131520]

約数ペア:

[(1, 1820131520), (2, 910065760), (4, 455032880), (5, 364026304), (8, 227516440), (10, 182013152), (16, 113758220), (17, 107066560), (20, 91006576), (31, 58713920), (32, 56879110), (34, 53533280), (40, 45503288), (43, 42328640), (62, 29356960), (64, 28439555), (68, 26766640), (80, 22751644), (85, 21413312), (86, 21164320), (124, 14678480), (136, 13383320), (155, 11742784), (160, 11375822), (170, 10706656), (172, 10582160), (215, 8465728), (248, 7339240), (251, 7251520), (272, 6691660), (310, 5871392), (320, 5687911), (340, 5353328), (344, 5291080), (430, 4232864), (496, 3669620), (502, 3625760), (527, 3453760), (544, 3345830), (620, 2935696), (680, 2676664), (688, 2645540), (731, 2489920), (860, 2116432), (992, 1834810), (1004, 1812880), (1054, 1726880), (1088, 1672915), (1240, 1467848), (1255, 1450304), (1333, 1365440), (1360, 1338332), (1376, 1322770), (1462, 1244960), (1720, 1058216), (1984, 917405), (2008, 906440), (2108, 863440), (2480, 733924), (2510, 725152), (2635, 690752), (2666, 682720), (2720, 669166), (2752, 661385), (2924, 622480), (3440, 529108), (3655, 497984), (4016, 453220), (4216, 431720), (4267, 426560), (4960, 366962), (5020, 362576), (5270, 345376), (5332, 341360), (5440, 334583), (5848, 311240), (6665, 273088), (6880, 264554), (7310, 248992), (7781, 233920), (8032, 226610), (8432, 215860), (8534, 213280), (9920, 183481), (10040, 181288), (10540, 172688), (10664, 170680), (10793, 168640), (11696, 155620), (13330, 136544), (13760, 132277), (14620, 124496), (15562, 116960), (16064, 113305), (16864, 107930), (17068, 106640), (20080, 90644), (21080, 86344), (21328, 85340), (21335, 85312), (21586, 84320), (22661, 80320), (23392, 77810), (26660, 68272), (29240, 62248), (31124, 58480), (33728, 53965), (34136, 53320), (38905, 46784), (40160, 45322), (42160, 43172), (42656, 42670)]