128207960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{86627}}^1$

素因数の和:86675

約数の個数: 32

約数和(自身を含む): 296267760

約数和(自身を除く): 168059800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 86627, 173254, 346508, 433135, 693016, 866270, 1732540, 3205199, 3465080, 6410398, 12820796, 16025995, 25641592, 32051990, 64103980, 128207960]

約数ペア:

[(1, 128207960), (2, 64103980), (4, 32051990), (5, 25641592), (8, 16025995), (10, 12820796), (20, 6410398), (37, 3465080), (40, 3205199), (74, 1732540), (148, 866270), (185, 693016), (296, 433135), (370, 346508), (740, 173254), (1480, 86627)]