18887720320

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{139}}^1\times {\mathrm{619}}^1$

素因数の和:798

約数の個数: 256

約数和(自身を含む): 53121600000

約数和(自身を除く): 34233879680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 139, 140, 160, 196, 224, 245, 278, 280, 320, 343, 392, 448, 490, 556, 560, 619, 640, 686, 695, 784, 896, 973, 980, 1112, 1120, 1238, 1372, 1390, 1568, 1715, 1946, 1960, 2224, 2240, 2476, 2744, 2780, 3095, 3136, 3430, 3892, 3920, 4333, 4448, 4480, 4865, 4952, 5488, 5560, 6190, 6272, 6811, 6860, 7784, 7840, 8666, 8896, 9730, 9904, 10976, 11120, 12380, 13622, 13720, 15568, 15680, 17332, 17792, 19460, 19808, 21665, 21952, 22240, 24760, 27244, 27440, 30331, 31136, 31360, 34055, 34664, 38920, 39616, 43330, 43904, 44480, 47677, 49520, 54488, 54880, 60662, 62272, 68110, 69328, 77840, 79232, 86041, 86660, 88960, 95354, 99040, 108976, 109760, 121324, 124544, 136220, 138656, 151655, 155680, 172082, 173320, 190708, 198080, 212317, 217952, 219520, 238385, 242648, 272440, 277312, 303310, 311360, 344164, 346640, 381416, 396160, 424634, 430205, 435904, 476770, 485296, 544880, 554624, 602287, 606620, 622720, 688328, 693280, 762832, 849268, 860410, 871808, 953540, 970592, 1061585, 1089760, 1204574, 1213240, 1376656, 1386560, 1525664, 1698536, 1720820, 1907080, 1941184, 2123170, 2179520, 2409148, 2426480, 2753312, 2773120, 3011435, 3051328, 3397072, 3441640, 3814160, 3882368, 4216009, 4246340, 4359040, 4818296, 4852960, 5506624, 6022870, 6102656, 6794144, 6883280, 7628320, 8432018, 8492680, 9636592, 9705920, 11013248, 12045740, 13588288, 13766560, 15256640, 16864036, 16985360, 19273184, 19411840, 21080045, 24091480, 27176576, 27533120, 29512063, 30513280, 33728072, 33970720, 38546368, 42160090, 48182960, 55066240, 59024126, 67456144, 67941440, 77092736, 84320180, 96365920, 118048252, 134912288, 135882880, 147560315, 168640360, 192731840, 236096504, 269824576, 295120630, 337280720, 385463680, 472193008, 539649152, 590241260, 674561440, 944386016, 1180482520, 1349122880, 1888772032, 2360965040, 2698245760, 3777544064, 4721930080, 9443860160, 18887720320]

約数ペア:

[(1, 18887720320), (2, 9443860160), (4, 4721930080), (5, 3777544064), (7, 2698245760), (8, 2360965040), (10, 1888772032), (14, 1349122880), (16, 1180482520), (20, 944386016), (28, 674561440), (32, 590241260), (35, 539649152), (40, 472193008), (49, 385463680), (56, 337280720), (64, 295120630), (70, 269824576), (80, 236096504), (98, 192731840), (112, 168640360), (128, 147560315), (139, 135882880), (140, 134912288), (160, 118048252), (196, 96365920), (224, 84320180), (245, 77092736), (278, 67941440), (280, 67456144), (320, 59024126), (343, 55066240), (392, 48182960), (448, 42160090), (490, 38546368), (556, 33970720), (560, 33728072), (619, 30513280), (640, 29512063), (686, 27533120), (695, 27176576), (784, 24091480), (896, 21080045), (973, 19411840), (980, 19273184), (1112, 16985360), (1120, 16864036), (1238, 15256640), (1372, 13766560), (1390, 13588288), (1568, 12045740), (1715, 11013248), (1946, 9705920), (1960, 9636592), (2224, 8492680), (2240, 8432018), (2476, 7628320), (2744, 6883280), (2780, 6794144), (3095, 6102656), (3136, 6022870), (3430, 5506624), (3892, 4852960), (3920, 4818296), (4333, 4359040), (4448, 4246340), (4480, 4216009), (4865, 3882368), (4952, 3814160), (5488, 3441640), (5560, 3397072), (6190, 3051328), (6272, 3011435), (6811, 2773120), (6860, 2753312), (7784, 2426480), (7840, 2409148), (8666, 2179520), (8896, 2123170), (9730, 1941184), (9904, 1907080), (10976, 1720820), (11120, 1698536), (12380, 1525664), (13622, 1386560), (13720, 1376656), (15568, 1213240), (15680, 1204574), (17332, 1089760), (17792, 1061585), (19460, 970592), (19808, 953540), (21665, 871808), (21952, 860410), (22240, 849268), (24760, 762832), (27244, 693280), (27440, 688328), (30331, 622720), (31136, 606620), (31360, 602287), (34055, 554624), (34664, 544880), (38920, 485296), (39616, 476770), (43330, 435904), (43904, 430205), (44480, 424634), (47677, 396160), (49520, 381416), (54488, 346640), (54880, 344164), (60662, 311360), (62272, 303310), (68110, 277312), (69328, 272440), (77840, 242648), (79232, 238385), (86041, 219520), (86660, 217952), (88960, 212317), (95354, 198080), (99040, 190708), (108976, 173320), (109760, 172082), (121324, 155680), (124544, 151655), (136220, 138656)]