77649292

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 159183360

約数和(自身を除く): 81534068

約数列:

[1, 2, 4, 7, 14, 28, 71, 139, 142, 278, 281, 284, 497, 556, 562, 973, 994, 1124, 1946, 1967, 1988, 3892, 3934, 7868, 9869, 19738, 19951, 39059, 39476, 39902, 69083, 78118, 79804, 138166, 139657, 156236, 273413, 276332, 279314, 546826, 558628, 1093652, 2773189, 5546378, 11092756, 19412323, 38824646, 77649292]

約数ペア:

[(1, 77649292), (2, 38824646), (4, 19412323), (7, 11092756), (14, 5546378), (28, 2773189), (71, 1093652), (139, 558628), (142, 546826), (278, 279314), (281, 276332), (284, 273413), (497, 156236), (556, 139657), (562, 138166), (973, 79804), (994, 78118), (1124, 69083), (1946, 39902), (1967, 39476), (1988, 39059), (3892, 19951), (3934, 19738), (7868, 9869)]