638520064

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{27409}}^1$

素因数の和:27445

約数の個数: 72

約数和(自身を含む): 1568729120

約数和(自身を除く): 930209056

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 896, 1456, 1664, 1792, 2912, 3328, 5824, 11648, 23296, 27409, 54818, 109636, 191863, 219272, 356317, 383726, 438544, 712634, 767452, 877088, 1425268, 1534904, 1754176, 2494219, 2850536, 3069808, 3508352, 4988438, 5701072, 6139616, 7016704, 9976876, 11402144, 12279232, 19953752, 22804288, 24558464, 39907504, 45608576, 49116928, 79815008, 91217152, 159630016, 319260032, 638520064]

約数ペア:

[(1, 638520064), (2, 319260032), (4, 159630016), (7, 91217152), (8, 79815008), (13, 49116928), (14, 45608576), (16, 39907504), (26, 24558464), (28, 22804288), (32, 19953752), (52, 12279232), (56, 11402144), (64, 9976876), (91, 7016704), (104, 6139616), (112, 5701072), (128, 4988438), (182, 3508352), (208, 3069808), (224, 2850536), (256, 2494219), (364, 1754176), (416, 1534904), (448, 1425268), (728, 877088), (832, 767452), (896, 712634), (1456, 438544), (1664, 383726), (1792, 356317), (2912, 219272), (3328, 191863), (5824, 109636), (11648, 54818), (23296, 27409)]