20184628480

素因数分解:

$2^8\times 5^1\times {\mathrm{73}}^1\times {\mathrm{337}}^1\times {\mathrm{641}}^1$

素因数の和:1072

約数の個数: 144

約数和(自身を含む): 49232920464

約数和(自身を除く): 29048291984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 128, 146, 160, 256, 292, 320, 337, 365, 584, 640, 641, 674, 730, 1168, 1280, 1282, 1348, 1460, 1685, 2336, 2564, 2696, 2920, 3205, 3370, 4672, 5128, 5392, 5840, 6410, 6740, 9344, 10256, 10784, 11680, 12820, 13480, 18688, 20512, 21568, 23360, 24601, 25640, 26960, 41024, 43136, 46720, 46793, 49202, 51280, 53920, 82048, 86272, 93440, 93586, 98404, 102560, 107840, 123005, 164096, 187172, 196808, 205120, 215680, 216017, 233965, 246010, 374344, 393616, 410240, 431360, 432034, 467930, 492020, 748688, 787232, 820480, 864068, 935860, 984040, 1080085, 1497376, 1574464, 1728136, 1871720, 1968080, 2160170, 2994752, 3148928, 3456272, 3743440, 3936160, 4320340, 5989504, 6297856, 6912544, 7486880, 7872320, 8640680, 11979008, 13825088, 14973760, 15744640, 15769241, 17281360, 27650176, 29947520, 31489280, 31538482, 34562720, 55300352, 59895040, 63076964, 69125440, 78846205, 126153928, 138250880, 157692410, 252307856, 276501760, 315384820, 504615712, 630769640, 1009231424, 1261539280, 2018462848, 2523078560, 4036925696, 5046157120, 10092314240, 20184628480]

約数ペア:

[(1, 20184628480), (2, 10092314240), (4, 5046157120), (5, 4036925696), (8, 2523078560), (10, 2018462848), (16, 1261539280), (20, 1009231424), (32, 630769640), (40, 504615712), (64, 315384820), (73, 276501760), (80, 252307856), (128, 157692410), (146, 138250880), (160, 126153928), (256, 78846205), (292, 69125440), (320, 63076964), (337, 59895040), (365, 55300352), (584, 34562720), (640, 31538482), (641, 31489280), (674, 29947520), (730, 27650176), (1168, 17281360), (1280, 15769241), (1282, 15744640), (1348, 14973760), (1460, 13825088), (1685, 11979008), (2336, 8640680), (2564, 7872320), (2696, 7486880), (2920, 6912544), (3205, 6297856), (3370, 5989504), (4672, 4320340), (5128, 3936160), (5392, 3743440), (5840, 3456272), (6410, 3148928), (6740, 2994752), (9344, 2160170), (10256, 1968080), (10784, 1871720), (11680, 1728136), (12820, 1574464), (13480, 1497376), (18688, 1080085), (20512, 984040), (21568, 935860), (23360, 864068), (24601, 820480), (25640, 787232), (26960, 748688), (41024, 492020), (43136, 467930), (46720, 432034), (46793, 431360), (49202, 410240), (51280, 393616), (53920, 374344), (82048, 246010), (86272, 233965), (93440, 216017), (93586, 215680), (98404, 205120), (102560, 196808), (107840, 187172), (123005, 164096)]