1640883440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{821}}^1$

素因数の和:967

約数の個数: 160

約数和(自身を含む): 4520710656

約数和(自身を除く): 2879827216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 83, 86, 112, 140, 166, 172, 215, 280, 301, 332, 344, 415, 430, 560, 581, 602, 664, 688, 821, 830, 860, 1162, 1204, 1328, 1505, 1642, 1660, 1720, 2324, 2408, 2905, 3010, 3284, 3320, 3440, 3569, 4105, 4648, 4816, 5747, 5810, 6020, 6568, 6640, 7138, 8210, 9296, 11494, 11620, 12040, 13136, 14276, 16420, 17845, 22988, 23240, 24080, 24983, 28552, 28735, 32840, 35303, 35690, 45976, 46480, 49966, 57104, 57470, 65680, 68143, 70606, 71380, 91952, 99932, 114940, 124915, 136286, 141212, 142760, 176515, 199864, 229880, 247121, 249830, 272572, 282424, 285520, 340715, 353030, 399728, 459760, 477001, 494242, 499660, 545144, 564848, 681430, 706060, 954002, 988484, 999320, 1090288, 1235605, 1362860, 1412120, 1908004, 1976968, 1998640, 2385005, 2471210, 2725720, 2824240, 2930149, 3816008, 3953936, 4770010, 4942420, 5451440, 5860298, 7632016, 9540020, 9884840, 11720596, 14650745, 19080040, 19769680, 20511043, 23441192, 29301490, 38160080, 41022086, 46882384, 58602980, 82044172, 102555215, 117205960, 164088344, 205110430, 234411920, 328176688, 410220860, 820441720, 1640883440]

約数ペア:

[(1, 1640883440), (2, 820441720), (4, 410220860), (5, 328176688), (7, 234411920), (8, 205110430), (10, 164088344), (14, 117205960), (16, 102555215), (20, 82044172), (28, 58602980), (35, 46882384), (40, 41022086), (43, 38160080), (56, 29301490), (70, 23441192), (80, 20511043), (83, 19769680), (86, 19080040), (112, 14650745), (140, 11720596), (166, 9884840), (172, 9540020), (215, 7632016), (280, 5860298), (301, 5451440), (332, 4942420), (344, 4770010), (415, 3953936), (430, 3816008), (560, 2930149), (581, 2824240), (602, 2725720), (664, 2471210), (688, 2385005), (821, 1998640), (830, 1976968), (860, 1908004), (1162, 1412120), (1204, 1362860), (1328, 1235605), (1505, 1090288), (1642, 999320), (1660, 988484), (1720, 954002), (2324, 706060), (2408, 681430), (2905, 564848), (3010, 545144), (3284, 499660), (3320, 494242), (3440, 477001), (3569, 459760), (4105, 399728), (4648, 353030), (4816, 340715), (5747, 285520), (5810, 282424), (6020, 272572), (6568, 249830), (6640, 247121), (7138, 229880), (8210, 199864), (9296, 176515), (11494, 142760), (11620, 141212), (12040, 136286), (13136, 124915), (14276, 114940), (16420, 99932), (17845, 91952), (22988, 71380), (23240, 70606), (24080, 68143), (24983, 65680), (28552, 57470), (28735, 57104), (32840, 49966), (35303, 46480), (35690, 45976)]