257638472

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^2\times {\mathrm{3889}}^1$

素因数の和:3935

約数の個数: 72

約数和(自身を含む): 608648850

約数和(自身を除く): 351010378

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 169, 182, 196, 338, 364, 392, 637, 676, 728, 1183, 1274, 1352, 2366, 2548, 3889, 4732, 5096, 7778, 8281, 9464, 15556, 16562, 27223, 31112, 33124, 50557, 54446, 66248, 101114, 108892, 190561, 202228, 217784, 353899, 381122, 404456, 657241, 707798, 762244, 1314482, 1415596, 1524488, 2477293, 2628964, 2831192, 4600687, 4954586, 5257928, 9201374, 9909172, 18402748, 19818344, 32204809, 36805496, 64409618, 128819236, 257638472]

約数ペア:

[(1, 257638472), (2, 128819236), (4, 64409618), (7, 36805496), (8, 32204809), (13, 19818344), (14, 18402748), (26, 9909172), (28, 9201374), (49, 5257928), (52, 4954586), (56, 4600687), (91, 2831192), (98, 2628964), (104, 2477293), (169, 1524488), (182, 1415596), (196, 1314482), (338, 762244), (364, 707798), (392, 657241), (637, 404456), (676, 381122), (728, 353899), (1183, 217784), (1274, 202228), (1352, 190561), (2366, 108892), (2548, 101114), (3889, 66248), (4732, 54446), (5096, 50557), (7778, 33124), (8281, 31112), (9464, 27223), (15556, 16562)]