130771880

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{12721}}^1$

素因数の和:12989

約数の個数: 32

約数和(自身を含む): 295404840

約数和(自身を除く): 164632960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 12721, 25442, 50884, 63605, 101768, 127210, 254420, 508840, 3269297, 6538594, 13077188, 16346485, 26154376, 32692970, 65385940, 130771880]

約数ペア:

[(1, 130771880), (2, 65385940), (4, 32692970), (5, 26154376), (8, 16346485), (10, 13077188), (20, 6538594), (40, 3269297), (257, 508840), (514, 254420), (1028, 127210), (1285, 101768), (2056, 63605), (2570, 50884), (5140, 25442), (10280, 12721)]