257996844

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{6521}}^1$

素因数の和:6695

約数の個数: 72

約数和(自身を含む): 750186528

約数和(自身を除く): 492189684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 157, 252, 314, 471, 628, 942, 1099, 1413, 1884, 2198, 2826, 3297, 4396, 5652, 6521, 6594, 9891, 13042, 13188, 19563, 19782, 26084, 39126, 39564, 45647, 58689, 78252, 91294, 117378, 136941, 182588, 234756, 273882, 410823, 547764, 821646, 1023797, 1643292, 2047594, 3071391, 4095188, 6142782, 7166579, 9214173, 12285564, 14333158, 18428346, 21499737, 28666316, 36856692, 42999474, 64499211, 85998948, 128998422, 257996844]

約数ペア:

[(1, 257996844), (2, 128998422), (3, 85998948), (4, 64499211), (6, 42999474), (7, 36856692), (9, 28666316), (12, 21499737), (14, 18428346), (18, 14333158), (21, 12285564), (28, 9214173), (36, 7166579), (42, 6142782), (63, 4095188), (84, 3071391), (126, 2047594), (157, 1643292), (252, 1023797), (314, 821646), (471, 547764), (628, 410823), (942, 273882), (1099, 234756), (1413, 182588), (1884, 136941), (2198, 117378), (2826, 91294), (3297, 78252), (4396, 58689), (5652, 45647), (6521, 39564), (6594, 39126), (9891, 26084), (13042, 19782), (13188, 19563)]