257354748

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{547}}^1\times {\mathrm{1867}}^1$

素因数の和:2431

約数の個数: 72

約数和(自身を含む): 745227392

約数和(自身を除く): 487872644

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 547, 1094, 1641, 1867, 2188, 3282, 3734, 3829, 4923, 5601, 6564, 7468, 7658, 9846, 11202, 11487, 13069, 15316, 16803, 19692, 22404, 22974, 26138, 33606, 34461, 39207, 45948, 52276, 67212, 68922, 78414, 117621, 137844, 156828, 235242, 470484, 1021249, 2042498, 3063747, 4084996, 6127494, 7148743, 9191241, 12254988, 14297486, 18382482, 21446229, 28594972, 36764964, 42892458, 64338687, 85784916, 128677374, 257354748]

約数ペア:

[(1, 257354748), (2, 128677374), (3, 85784916), (4, 64338687), (6, 42892458), (7, 36764964), (9, 28594972), (12, 21446229), (14, 18382482), (18, 14297486), (21, 12254988), (28, 9191241), (36, 7148743), (42, 6127494), (63, 4084996), (84, 3063747), (126, 2042498), (252, 1021249), (547, 470484), (1094, 235242), (1641, 156828), (1867, 137844), (2188, 117621), (3282, 78414), (3734, 68922), (3829, 67212), (4923, 52276), (5601, 45948), (6564, 39207), (7468, 34461), (7658, 33606), (9846, 26138), (11202, 22974), (11487, 22404), (13069, 19692), (15316, 16803)]